{"action":"Upgrade react-router to 7.13.2 or later.","affected":[{"fixed":"7.13.2","introduced":"7.5.1"}],"component":"react-router","cve_ids":["CVE-2026-33244"],"ecosystem":"npm","epss":0.00144,"exploited":false,"fixed_versions":["7.13.2"],"ghsa_id":"GHSA-f22v-gfqf-p8f3","id":"tcs_01M5KFM1DV4YNZZ2T0NEM76CEA","modified_at":"2026-09-08T16:45:04.231964105Z","published_at":"2026-06-03T20:33:01Z","references":["https://osv.dev/vulnerability/GHSA-f22v-gfqf-p8f3","https://github.com/remix-run/react-router/security/advisories/GHSA-f22v-gfqf-p8f3","https://nvd.nist.gov/vuln/detail/CVE-2026-33244","https://github.com/remix-run/react-router/pull/14880","https://github.com/remix-run/react-router/commit/ea28e66926460656815cee9b7f2dfaa872513a8c","https://github.com/remix-run/react-router","https://github.com/remix-run/react-router/blob/react-router%407.13.2/CHANGELOG.md#v7132"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-f22v-gfqf-p8f3","url":"https://osv.dev/vulnerability/GHSA-f22v-gfqf-p8f3"}],"summary":"React Router has stored XSS via unescaped Location header in prerendered redirect HTML"}