{"action":"Upgrade better-auth to 1.4.9 or later.","affected":[{"fixed":"1.4.9","introduced":"0"}],"component":"better-auth","cve_ids":["CVE-2026-67337"],"ecosystem":"npm","epss":0.00462,"exploited":false,"fixed_versions":["1.4.9"],"ghsa_id":"GHSA-xg6x-h9c9-2m83","id":"tcs_01M5KGHY7RBMEMXDVZR3JYQDZ5","modified_at":"2026-08-02T03:56:49.020545992Z","published_at":"2026-04-03T03:29:59Z","references":["https://osv.dev/vulnerability/GHSA-xg6x-h9c9-2m83","https://github.com/better-auth/better-auth/security/advisories/GHSA-xg6x-h9c9-2m83","https://github.com/better-auth/better-auth"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-xg6x-h9c9-2m83","url":"https://osv.dev/vulnerability/GHSA-xg6x-h9c9-2m83"},{"source":"nvd","source_id":"CVE-2026-67337","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67337"}],"summary":"Better Auth Has Two-Factor Authentication Bypass via Premature Session Caching (session.cookieCache)"}