{"items":[{"id":"NVI-00004079","kind":"vulnerability","title":"Symfony has XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-x6g4-fwcc-jj8w","CVE-2026-45071"],"plain_summary":"GitHub lists this reviewed advisory for symfony/dom-crawler, symfony/symfony, symfony/dom-crawler, symfony/dom-crawler, symfony/dom-crawler. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-09d51fde1fe87ddebb01c1046602ac8c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.52 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.52 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.4.40 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.4.12 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.0.12 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.4.40 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.4.12 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.0.12 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-15T15:16:33.777Z","value":"7.5 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-52689420a5381516bc5a68442505e76c"},{"kind":"CVSS","as_of":"2026-07-15T15:16:33.777Z","value":"8.7 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-52689420a5381516bc5a68442505e76c"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.570%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.47227. Missing scores are unknown.","source_id":"sr-09d51fde1fe87ddebb01c1046602ac8c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-01dfb45955790d41d40906ddf308fe7f","url":"https://github.com/advisories/GHSA-x6g4-fwcc-jj8w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-x6g4-fwcc-jj8w","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:53:22.747Z"},{"id":"sr-5719d6e3aa38ff1c65038c1a30c9aba1","url":"https://github.com/advisories/GHSA-x6g4-fwcc-jj8w","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-x6g4-fwcc-jj8w","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.440Z"},{"id":"sr-52689420a5381516bc5a68442505e76c","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45071","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-45071","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:11.754Z"},{"id":"sr-09d51fde1fe87ddebb01c1046602ac8c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-45071","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.379Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["< 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["< 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":[">= 6.0.0, < 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":[">= 7.0.0, < 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":[">= 8.0.0, < 8.0.12"]},{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":[">= 6.0.0, < 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":[">= 7.0.0, < 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-01dfb45955790d41d40906ddf308fe7f"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":[">= 8.0.0, < 8.0.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 6.0.0; fixed 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.0.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 6.0.0; fixed 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.0.12"]}],"null_published_at":"2026-11-07T07:07:39.796Z","source_updated_at":"2026-05-27T21:09:45.000Z","source_disclosed_at":"2026-05-27T21:09:44.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:51.440Z"},{"id":"NVI-00004079","kind":"vulnerability","title":"Symfony has XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-x6g4-fwcc-jj8w","CVE-2026-45071"],"plain_summary":"OSV carries this publisher advisory for symfony/dom-crawler, symfony/symfony, symfony/dom-crawler, symfony/dom-crawler, symfony/dom-crawler. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.4.52 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.52 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.4.40 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.4.12 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.0.12 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.4.40 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.4.12 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.0.12 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-09d51fde1fe87ddebb01c1046602ac8c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-15T15:16:33.777Z","value":"7.5 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-52689420a5381516bc5a68442505e76c"},{"kind":"CVSS","as_of":"2026-07-15T15:16:33.777Z","value":"8.7 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-52689420a5381516bc5a68442505e76c"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.570%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.47227. Missing scores are unknown.","source_id":"sr-09d51fde1fe87ddebb01c1046602ac8c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5719d6e3aa38ff1c65038c1a30c9aba1","url":"https://github.com/advisories/GHSA-x6g4-fwcc-jj8w","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-x6g4-fwcc-jj8w","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.440Z"},{"id":"sr-52689420a5381516bc5a68442505e76c","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45071","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-45071","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:11.754Z"},{"id":"sr-09d51fde1fe87ddebb01c1046602ac8c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-45071","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.379Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 6.0.0; fixed 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.0.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 6.0.0; fixed 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.0.12"]}],"null_published_at":"2026-11-02T20:21:10.257Z","source_updated_at":"2026-09-10T03:50:48.160Z","source_disclosed_at":"2026-05-27T21:09:44.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:51.440Z"},{"id":"NVI-00004079","kind":"vulnerability","title":"Symfony has XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-x6g4-fwcc-jj8w","CVE-2026-45071"],"plain_summary":"OSV carries this publisher advisory for symfony/dom-crawler, symfony/symfony, symfony/dom-crawler, symfony/dom-crawler, symfony/dom-crawler. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.4.52 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.52 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.4.40 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.4.12 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.0.12 for symfony/dom-crawler. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 6.4.40 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.4.12 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 8.0.12 for symfony/symfony. Confirm the publisher’s latest guidance.","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-09d51fde1fe87ddebb01c1046602ac8c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.570%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.47227. Missing scores are unknown.","source_id":"sr-09d51fde1fe87ddebb01c1046602ac8c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5719d6e3aa38ff1c65038c1a30c9aba1","url":"https://github.com/advisories/GHSA-x6g4-fwcc-jj8w","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-x6g4-fwcc-jj8w","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.440Z"},{"id":"sr-09d51fde1fe87ddebb01c1046602ac8c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-45071","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.379Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.4.52"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 6.0.0; fixed 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/dom-crawler","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.0.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 6.0.0; fixed 6.4.40"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.4.12"]},{"certainty":"source_listed","source_ids":["sr-5719d6e3aa38ff1c65038c1a30c9aba1"],"technology":"symfony/symfony","known_exclusions":[],"conditions_summary":"### Description\n\n`symfony/dom-crawler` provides the `Crawler` class for navigating HTML/XML documents with CSS/XPath selectors; `symfony/browser-kit`'s `HttpBrowser` uses it to parse fetched pages.\n\n`Crawler::addXmlContent()` sets `DOMDocument::$validateOnParse = true` before calling `loadXML()`. Setting `validateOnParse` re-enables libxml's DTD subset processing, including external entity resolution, even though `LIBXML_NONET` is passed. `LIBXML_NONET` blocks **network** fetches but not `file://` entities. An attacker-supplied XML document with a `SYSTEM \"file:///etc/passwd\"` entity is therefore expanded.\n\n### Resolution\n\nThe `Crawler::addXmlContent` method does not set the `validateOnParse` flag anymore.\n\nThe patch for this issue is available here for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.","public_affected_ranges":["ECOSYSTEM: introduced 8.0.0; fixed 8.0.12"]}],"null_published_at":"2026-10-31T22:13:44.226Z","source_updated_at":"2026-09-10T03:50:48.160Z","source_disclosed_at":"2026-05-27T21:09:44.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:51.440Z"}],"next_cursor":null,"snapshot_revision":"42594"}