{"id":"CVE-2026-67337","aliases":["GHSA-xg6x-h9c9-2m83"],"url":"https://o3.security/vulnerability/CVE-2026-67337","summary":"better-auth before 1.4.9 Two-Factor Authentication Bypass via session.cookieCache","details":"better-auth versions before 1.4.9 contain a two-factor authentication bypass vulnerability when session.cookieCache is enabled. Attackers with valid primary credentials can access authenticated routes without completing second-factor verification by exploiting premature session caching.","published":"2026-08-01T12:22:18.034Z","modified":"2026-09-10T03:30:45.935279238Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"better-auth","fixedVersion":"1.4.9"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67337.json"},{"type":"ADVISORY","url":"https://github.com/better-auth/better-auth/security/advisories/GHSA-xg6x-h9c9-2m83"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67337"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/better-auth-before-two-factor-authentication-bypass-via-session-cookiecache"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:30:45.935279238Z"}}