{"action":"Upgrade @react-router/node to 7.9.4 or later.","affected":[{"fixed":"7.9.4","introduced":"7.0.0"}],"component":"@react-router/node","cve_ids":["CVE-2025-61686"],"ecosystem":"npm","epss":0.17346,"exploited":false,"fixed_versions":["7.9.4"],"ghsa_id":"GHSA-9583-h5hc-x8cw","id":"tcs_01M5KFETGS5PKGH6QVDQ5TKP2R","modified_at":"2026-09-18T21:15:04.608726085Z","published_at":"2026-01-08T20:45:07Z","references":["https://osv.dev/vulnerability/GHSA-9583-h5hc-x8cw","https://github.com/remix-run/react-router/security/advisories/GHSA-9583-h5hc-x8cw","https://nvd.nist.gov/vuln/detail/CVE-2025-61686","https://access.redhat.com/security/cve/CVE-2025-61686","https://bugzilla.redhat.com/show_bug.cgi?id=2428423","https://github.com/remix-run/react-router","https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-61686.json"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-9583-h5hc-x8cw","url":"https://osv.dev/vulnerability/GHSA-9583-h5hc-x8cw"}],"summary":"React Router has Path Traversal in File Session Storage"}