{"action":"Upgrade react-router to 7.18.2 or later.","affected":[{"fixed":"7.18.2","introduced":"7.12.0"},{"fixed":"8.3.0","introduced":"8.0.0"}],"component":"react-router","cve_ids":[],"ecosystem":"npm","exploited":false,"fixed_versions":["7.18.2","8.3.0"],"ghsa_id":"GHSA-qwww-vcr4-c8h2","id":"tcs_01M5KG7DHF202C04636KTPVJK9","modified_at":"2026-09-10T03:50:52.955441840Z","published_at":"2026-07-24T16:44:43Z","references":["https://osv.dev/vulnerability/GHSA-qwww-vcr4-c8h2","https://github.com/remix-run/react-router/security/advisories/GHSA-qwww-vcr4-c8h2","https://github.com/remix-run/react-router/pull/15353","https://github.com/remix-run/react-router/commit/7a71c728ad116bd78699a258b2014ce9585729f5","https://github.com/remix-run/react-router/commit/8ebd5df9932854547963e3255c8454e62430e05d","https://github.com/remix-run/react-router","https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v830","https://github.com/remix-run/react-router/blob/v7/CHANGELOG.md#v7182","https://github.com/remix-run/react-router/releases/tag/react-router%407.18.2","https://github.com/remix-run/react-router/releases/tag/react-router@8.3.0","http://github.com/remix-run/react-router/pull/15311"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-qwww-vcr4-c8h2","url":"https://osv.dev/vulnerability/GHSA-qwww-vcr4-c8h2"}],"summary":"React Router: RSC Mode CSRF Bypass Allows Action Execution Before 400 Response"}