CVE-2026-67334: better-auth versions before 1.6.11 fail to delete cached sessions when removing users via admin, anonymous, or SCIM endpoints when secondaryStorage is configured and storeSessionIn
better-auth versions before 1.6.11 fail to delete cached sessions when removing users via admin, anonymous, or SCIM endpoints when secondaryStorage is configured and storeSessionInDatabase is false. Attackers can reuse deleted user session tokens to maintain authentication for up to seven days after account deletion.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-67334
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-67334 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for better-auth
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-67337: better-auth versions before 1.4.9 contain a two-factor authentication bypass vulnerability whe…nvd · 2026-08-01
- highCVE-2026-67336: better-auth versions before 1.6.11 contain insecure cryptographic defaults in the oidcProvider…nvd · 2026-08-01
- mediumCVE-2026-67335: better-auth versions before 1.6.2 fail to validate the OAuth state parameter against the store…nvd · 2026-08-01
- highCVE-2026-67333: better-auth before 1.6.13 (and pre-release builds 1.7.0-beta.0 through 1.7.0-beta.3) fail to v…nvd · 2026-08-01
- mediumCVE-2026-67332: @better-auth/oauth-provider before 1.7.0-beta.4 fails to bind access-token audience to the aut…nvd · 2026-08-01
- highCVE-2026-67331: better-auth SCIM versions from 1.5.0 before 1.7.0-beta.4 fail to bind non-organization SCIM pr…nvd · 2026-08-01
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