{"items":[{"id":"NVI-00005790","kind":"vulnerability","title":"SimpleSAMLphp has Possible DoS via XPath Transform","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-5cjr-mxj5-wmrx","CVE-2026-49289"],"plain_summary":"GitHub lists this reviewed advisory for simplesamlphp/saml2, simplesamlphp/saml2-legacy, simplesamlphp/saml2, simplesamlphp/saml2-legacy. 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-07cbfaa0ca57368b81a49f059f0a9315"],"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 4.20.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.20.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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":"2026-08-05T12:44:44.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-198e77c258e8f520f7734b5488e47ffb"},{"kind":"CVSS","as_of":"2026-09-18T20:09:01.757Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-ab393baaddedb6e687ce9e62d27b2404"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.784%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56066. Missing scores are unknown.","source_id":"sr-07cbfaa0ca57368b81a49f059f0a9315"}],"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-198e77c258e8f520f7734b5488e47ffb","url":"https://github.com/advisories/GHSA-5cjr-mxj5-wmrx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-5cjr-mxj5-wmrx","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:09.980Z"},{"id":"sr-9cc927efbfde1ab31a310c44588503eb","url":"https://github.com/advisories/GHSA-5cjr-mxj5-wmrx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5cjr-mxj5-wmrx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.920Z"},{"id":"sr-ab393baaddedb6e687ce9e62d27b2404","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49289","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-49289","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:22.913Z"},{"id":"sr-07cbfaa0ca57368b81a49f059f0a9315","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-2026-49289","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.281Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":[">= 4.20.0, <= 4.20.2"]},{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":[">= 4.20.0, <= 4.20.2"]},{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["<= 4.19.2"]},{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["<= 4.19.2"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]}],"null_published_at":"2026-11-06T15:18:17.673Z","source_updated_at":"2026-08-05T12:44:44.000Z","source_disclosed_at":"2026-07-02T20:27:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:59.920Z"},{"id":"NVI-00005790","kind":"vulnerability","title":"SimpleSAMLphp has Possible DoS via XPath Transform","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5cjr-mxj5-wmrx","CVE-2026-49289"],"plain_summary":"GitHub lists this reviewed advisory for simplesamlphp/saml2, simplesamlphp/saml2-legacy, simplesamlphp/saml2, simplesamlphp/saml2-legacy. 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-07cbfaa0ca57368b81a49f059f0a9315"],"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 4.20.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.20.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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":"2026-08-05T12:44:44.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-198e77c258e8f520f7734b5488e47ffb"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.784%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56066. Missing scores are unknown.","source_id":"sr-07cbfaa0ca57368b81a49f059f0a9315"}],"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-198e77c258e8f520f7734b5488e47ffb","url":"https://github.com/advisories/GHSA-5cjr-mxj5-wmrx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-5cjr-mxj5-wmrx","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:09.980Z"},{"id":"sr-9cc927efbfde1ab31a310c44588503eb","url":"https://github.com/advisories/GHSA-5cjr-mxj5-wmrx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5cjr-mxj5-wmrx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.920Z"},{"id":"sr-07cbfaa0ca57368b81a49f059f0a9315","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-2026-49289","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.281Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":[">= 4.20.0, <= 4.20.2"]},{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":[">= 4.20.0, <= 4.20.2"]},{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["<= 4.19.2"]},{"certainty":"source_listed","source_ids":["sr-198e77c258e8f520f7734b5488e47ffb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["<= 4.19.2"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]}],"null_published_at":"2026-11-03T10:03:26.544Z","source_updated_at":"2026-08-05T12:44:44.000Z","source_disclosed_at":"2026-07-02T20:27:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:59.920Z"},{"id":"NVI-00005790","kind":"vulnerability","title":"SimpleSAMLphp has Possible DoS via XPath Transform","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5cjr-mxj5-wmrx","CVE-2026-49289"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/saml2, simplesamlphp/saml2-legacy, simplesamlphp/saml2, simplesamlphp/saml2-legacy. 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 4.20.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.20.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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-07cbfaa0ca57368b81a49f059f0a9315"],"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":"2026-11-01T12:00:16.000Z","value":"0.784%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56066. Missing scores are unknown.","source_id":"sr-07cbfaa0ca57368b81a49f059f0a9315"}],"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-9cc927efbfde1ab31a310c44588503eb","url":"https://github.com/advisories/GHSA-5cjr-mxj5-wmrx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5cjr-mxj5-wmrx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.920Z"},{"id":"sr-07cbfaa0ca57368b81a49f059f0a9315","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-2026-49289","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.281Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]}],"null_published_at":"2026-11-02T20:21:07.830Z","source_updated_at":"2026-08-05T13:00:18.818Z","source_disclosed_at":"2026-07-02T20:27:23.000Z","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":"2026-10-31T21:41:59.920Z"},{"id":"NVI-00005790","kind":"vulnerability","title":"SimpleSAMLphp has Possible DoS via XPath Transform","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5cjr-mxj5-wmrx","CVE-2026-49289"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/saml2, simplesamlphp/saml2-legacy, simplesamlphp/saml2, simplesamlphp/saml2-legacy. 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 4.20.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.20.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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 4.19.3 for simplesamlphp/saml2-legacy. Confirm the publisher’s latest guidance.","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"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":[],"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-9cc927efbfde1ab31a310c44588503eb","url":"https://github.com/advisories/GHSA-5cjr-mxj5-wmrx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5cjr-mxj5-wmrx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.920Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 4.20.0; fixed 4.20.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]},{"certainty":"source_listed","source_ids":["sr-9cc927efbfde1ab31a310c44588503eb"],"technology":"simplesamlphp/saml2-legacy","known_exclusions":[],"conditions_summary":"## Summary\n\nThis library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications (and specifically refuse XPath transforms).\n\n## Impact\n\nAn attacker is able to send specially crafted messages to any entity relying on SimpleSAMLphp (or directly on this SAML2-library) to be able to perform a Denial-of-Service attack.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.19.3"]}],"null_published_at":"2026-10-31T22:13:05.838Z","source_updated_at":"2026-08-05T13:00:18.818Z","source_disclosed_at":"2026-07-02T20:27:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:59.920Z"}],"next_cursor":null,"snapshot_revision":"42594"}