{"items":[{"id":"NVI-00007702","kind":"vulnerability","title":"symfony/ux-live-component: CSRF Protection Bypass — Accept Header is CORS-Safelisted","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-4m4j-hmqq-3gxm","CVE-2026-49215"],"plain_summary":"OSV carries this publisher advisory for symfony/ux-live-component, symfony/ux-live-component. 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 2.36.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"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 3.1.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"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-066f5903c51bbaad05a22a1ea356665b"],"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":"2026-10-24T20:10:00.137Z","value":"5.4 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-071a57853350bd3f70d1245edba603b1"},{"kind":"CVSS","as_of":"2026-10-24T20:10:00.137Z","value":"2.1 LOW (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-071a57853350bd3f70d1245edba603b1"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.177%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07236. Missing scores are unknown.","source_id":"sr-066f5903c51bbaad05a22a1ea356665b"}],"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-e5585f8a9be30c9fabf3c6fd66ba17ba","url":"https://github.com/advisories/GHSA-4m4j-hmqq-3gxm","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4m4j-hmqq-3gxm","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.670Z"},{"id":"sr-071a57853350bd3f70d1245edba603b1","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49215","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-49215","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:35.055Z"},{"id":"sr-066f5903c51bbaad05a22a1ea356665b","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-2026-49215","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.281Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\nWhen using `symfony/ux-live-component`, methods annotated with `#[LiveAction]` are invokable from the browser and mutate server-side state via AJAX. `Symfony\\UX\\LiveComponent\\EventListener\\LiveComponentSubscriber::isLiveComponentRequest()` gated these invocations on the presence of `Accept: application/vnd.live-component+html`, with a code comment stating that this acted as a CSRF protection.\n\nThe `Accept` header is a CORS-safelisted request header, so a cross-origin `fetch()` can set it without triggering a preflight. The header therefore provided no CSRF protection. Any `#[LiveAction]` could be forged cross-origin against a victim's session.\n\nIn practice the attack is mitigated by `SameSite=Lax` session cookies (Symfony's default), but applications using `SameSite=None`, `credentials: 'include'` with a permissive cookie policy, or that have been pivoted from another same-origin vector remained exposed.\n\n### Resolution\n\n`isLiveComponentRequest()` now additionally requires the request header `X-Requested-With: XMLHttpRequest`. This header is **not** CORS-safelisted, so the browser issues a preflight `","public_affected_ranges":["ECOSYSTEM: introduced 2.22.0; fixed 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\nWhen using `symfony/ux-live-component`, methods annotated with `#[LiveAction]` are invokable from the browser and mutate server-side state via AJAX. `Symfony\\UX\\LiveComponent\\EventListener\\LiveComponentSubscriber::isLiveComponentRequest()` gated these invocations on the presence of `Accept: application/vnd.live-component+html`, with a code comment stating that this acted as a CSRF protection.\n\nThe `Accept` header is a CORS-safelisted request header, so a cross-origin `fetch()` can set it without triggering a preflight. The header therefore provided no CSRF protection. Any `#[LiveAction]` could be forged cross-origin against a victim's session.\n\nIn practice the attack is mitigated by `SameSite=Lax` session cookies (Symfony's default), but applications using `SameSite=None`, `credentials: 'include'` with a permissive cookie policy, or that have been pivoted from another same-origin vector remained exposed.\n\n### Resolution\n\n`isLiveComponentRequest()` now additionally requires the request header `X-Requested-With: XMLHttpRequest`. This header is **not** CORS-safelisted, so the browser issues a preflight `","public_affected_ranges":["ECOSYSTEM: introduced 3.0.0; fixed 3.1.0"]}],"null_published_at":"2026-11-04T10:04:35.898Z","source_updated_at":"2026-09-10T03:51:07.830Z","source_disclosed_at":"2026-06-19T19:35:01.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:49.670Z"},{"id":"NVI-00007702","kind":"vulnerability","title":"symfony/ux-live-component: CSRF Protection Bypass — Accept Header is CORS-Safelisted","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4m4j-hmqq-3gxm","CVE-2026-49215"],"plain_summary":"OSV carries this publisher advisory for symfony/ux-live-component, symfony/ux-live-component. 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 2.36.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"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 3.1.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"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-066f5903c51bbaad05a22a1ea356665b"],"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":"0.177%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07236. Missing scores are unknown.","source_id":"sr-066f5903c51bbaad05a22a1ea356665b"}],"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-e5585f8a9be30c9fabf3c6fd66ba17ba","url":"https://github.com/advisories/GHSA-4m4j-hmqq-3gxm","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4m4j-hmqq-3gxm","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.670Z"},{"id":"sr-066f5903c51bbaad05a22a1ea356665b","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-2026-49215","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.281Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\nWhen using `symfony/ux-live-component`, methods annotated with `#[LiveAction]` are invokable from the browser and mutate server-side state via AJAX. `Symfony\\UX\\LiveComponent\\EventListener\\LiveComponentSubscriber::isLiveComponentRequest()` gated these invocations on the presence of `Accept: application/vnd.live-component+html`, with a code comment stating that this acted as a CSRF protection.\n\nThe `Accept` header is a CORS-safelisted request header, so a cross-origin `fetch()` can set it without triggering a preflight. The header therefore provided no CSRF protection. Any `#[LiveAction]` could be forged cross-origin against a victim's session.\n\nIn practice the attack is mitigated by `SameSite=Lax` session cookies (Symfony's default), but applications using `SameSite=None`, `credentials: 'include'` with a permissive cookie policy, or that have been pivoted from another same-origin vector remained exposed.\n\n### Resolution\n\n`isLiveComponentRequest()` now additionally requires the request header `X-Requested-With: XMLHttpRequest`. This header is **not** CORS-safelisted, so the browser issues a preflight `","public_affected_ranges":["ECOSYSTEM: introduced 2.22.0; fixed 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\nWhen using `symfony/ux-live-component`, methods annotated with `#[LiveAction]` are invokable from the browser and mutate server-side state via AJAX. `Symfony\\UX\\LiveComponent\\EventListener\\LiveComponentSubscriber::isLiveComponentRequest()` gated these invocations on the presence of `Accept: application/vnd.live-component+html`, with a code comment stating that this acted as a CSRF protection.\n\nThe `Accept` header is a CORS-safelisted request header, so a cross-origin `fetch()` can set it without triggering a preflight. The header therefore provided no CSRF protection. Any `#[LiveAction]` could be forged cross-origin against a victim's session.\n\nIn practice the attack is mitigated by `SameSite=Lax` session cookies (Symfony's default), but applications using `SameSite=None`, `credentials: 'include'` with a permissive cookie policy, or that have been pivoted from another same-origin vector remained exposed.\n\n### Resolution\n\n`isLiveComponentRequest()` now additionally requires the request header `X-Requested-With: XMLHttpRequest`. This header is **not** CORS-safelisted, so the browser issues a preflight `","public_affected_ranges":["ECOSYSTEM: introduced 3.0.0; fixed 3.1.0"]}],"null_published_at":"2026-11-02T20:21:07.821Z","source_updated_at":"2026-09-10T03:51:07.830Z","source_disclosed_at":"2026-06-19T19:35:01.000Z","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":"2026-10-31T21:41:49.670Z"},{"id":"NVI-00007702","kind":"vulnerability","title":"symfony/ux-live-component: CSRF Protection Bypass — Accept Header is CORS-Safelisted","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4m4j-hmqq-3gxm","CVE-2026-49215"],"plain_summary":"OSV carries this publisher advisory for symfony/ux-live-component, symfony/ux-live-component. 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 2.36.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"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 3.1.0 for symfony/ux-live-component. Confirm the publisher’s latest guidance.","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"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-e5585f8a9be30c9fabf3c6fd66ba17ba","url":"https://github.com/advisories/GHSA-4m4j-hmqq-3gxm","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4m4j-hmqq-3gxm","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.670Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\nWhen using `symfony/ux-live-component`, methods annotated with `#[LiveAction]` are invokable from the browser and mutate server-side state via AJAX. `Symfony\\UX\\LiveComponent\\EventListener\\LiveComponentSubscriber::isLiveComponentRequest()` gated these invocations on the presence of `Accept: application/vnd.live-component+html`, with a code comment stating that this acted as a CSRF protection.\n\nThe `Accept` header is a CORS-safelisted request header, so a cross-origin `fetch()` can set it without triggering a preflight. The header therefore provided no CSRF protection. Any `#[LiveAction]` could be forged cross-origin against a victim's session.\n\nIn practice the attack is mitigated by `SameSite=Lax` session cookies (Symfony's default), but applications using `SameSite=None`, `credentials: 'include'` with a permissive cookie policy, or that have been pivoted from another same-origin vector remained exposed.\n\n### Resolution\n\n`isLiveComponentRequest()` now additionally requires the request header `X-Requested-With: XMLHttpRequest`. This header is **not** CORS-safelisted, so the browser issues a preflight `","public_affected_ranges":["ECOSYSTEM: introduced 2.22.0; fixed 2.36.0"]},{"certainty":"source_listed","source_ids":["sr-e5585f8a9be30c9fabf3c6fd66ba17ba"],"technology":"symfony/ux-live-component","known_exclusions":[],"conditions_summary":"### Description\n\nWhen using `symfony/ux-live-component`, methods annotated with `#[LiveAction]` are invokable from the browser and mutate server-side state via AJAX. `Symfony\\UX\\LiveComponent\\EventListener\\LiveComponentSubscriber::isLiveComponentRequest()` gated these invocations on the presence of `Accept: application/vnd.live-component+html`, with a code comment stating that this acted as a CSRF protection.\n\nThe `Accept` header is a CORS-safelisted request header, so a cross-origin `fetch()` can set it without triggering a preflight. The header therefore provided no CSRF protection. Any `#[LiveAction]` could be forged cross-origin against a victim's session.\n\nIn practice the attack is mitigated by `SameSite=Lax` session cookies (Symfony's default), but applications using `SameSite=None`, `credentials: 'include'` with a permissive cookie policy, or that have been pivoted from another same-origin vector remained exposed.\n\n### Resolution\n\n`isLiveComponentRequest()` now additionally requires the request header `X-Requested-With: XMLHttpRequest`. This header is **not** CORS-safelisted, so the browser issues a preflight `","public_affected_ranges":["ECOSYSTEM: introduced 3.0.0; fixed 3.1.0"]}],"null_published_at":"2026-10-31T22:13:18.631Z","source_updated_at":"2026-09-10T03:51:07.830Z","source_disclosed_at":"2026-06-19T19:35:01.000Z","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":"2026-10-31T21:41:49.670Z"}],"next_cursor":null,"snapshot_revision":"40769"}