{"action":"Upgrade better-auth to 1.4.0 or later.","affected":[{"fixed":"1.4.0","introduced":"1.3.34"}],"component":"better-auth","cve_ids":["CVE-2025-71402"],"ecosystem":"npm","epss":0.00268,"exploited":false,"fixed_versions":["1.4.0"],"ghsa_id":"GHSA-wmjr-v86c-m9jj","id":"tcs_01M5KGFDMBASFMN30KFKJJXVWK","modified_at":"2026-08-02T03:56:46.379093639Z","published_at":"2025-11-26T22:11:50Z","references":["https://osv.dev/vulnerability/GHSA-wmjr-v86c-m9jj","https://github.com/better-auth/better-auth/security/advisories/GHSA-wmjr-v86c-m9jj","https://github.com/better-auth/better-auth/commit/cfc453a2a6eb02951f9a0a7c944064936e73eee8","https://github.com/better-auth/better-auth","https://github.com/better-auth/better-auth/releases/tag/v1.4.0"],"severity":{"label":"low","score":2},"sources":[{"source":"osv","source_id":"GHSA-wmjr-v86c-m9jj","url":"https://osv.dev/vulnerability/GHSA-wmjr-v86c-m9jj"},{"source":"nvd","source_id":"CVE-2025-71402","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71402"}],"summary":"Better Auth's multi-session sign-out hook allows forged cookies to revoke arbitrary sessions"}