{"id":"GHSA-8646-j5j9-6r62","summary":"React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets","details":"When using React Router v7's unstable RSC APIs, there exists a potential client-side XSS issue in the RSC redirect handling if redirects are coming from untrusted sources\n\n\u003e [!NOTE]\n\u003e This only impacts your application if you are using the unstable RSC APIs in React Router.","aliases":["CVE-2026-33245"],"modified":"2026-06-03T20:56:33.997365Z","published":"2026-06-03T20:33:32Z","database_specific":{"nvd_published_at":"2026-06-02T20:16:34Z","cwe_ids":["CWE-79"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-06-03T20:33:32Z"},"references":[{"type":"WEB","url":"https://github.com/remix-run/react-router/security/advisories/GHSA-8646-j5j9-6r62"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33245"},{"type":"PACKAGE","url":"https://github.com/remix-run/react-router"}],"affected":[{"package":{"name":"react-router","ecosystem":"npm","purl":"pkg:npm/react-router"},"ranges":[{"type":"SEMVER","events":[{"introduced":"7.7.0"},{"fixed":"7.13.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-8646-j5j9-6r62/GHSA-8646-j5j9-6r62.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N"}]}