TI-2026-47630 Aliases CVE-2026-67334 GHSA-gj53-4jmf-7745

better-auth Stale Sessions Persist After User Deletion

LOW 23CWE-459Published 2026-08-01 · Updated 2026-10-08

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00323 25th percentileScored 2026-11-07

Fix Fixed better-auth (better-auth): 1.6.11

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
better-auth	better-auth	0.3.4 to before 1.6.11	1.6.11	Patch available	CNA
better-auth	better-auth	1.6.0 to before 1.6.11	1.6.11	Patch available	CNA

better-auth Vendorbetter-auth Affected 0.3.4 to before 1.6.11 Fixed in 1.6.11 Patch available CNA
better-auth Vendorbetter-auth Affected 1.6.0 to before 1.6.11 Fixed in 1.6.11 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:better-auth:better_auth::::::::	—	—	better-auth

cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:*:*:* Versions — — ·better-auth

Remediation

Fix · CNA better-auth (better-auth) Fixed in 1.6.11
Fix · CNA better-auth (better-auth) Fixed in 1.6.11

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-08-01
better-auth 1.6.11
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-47632 better-auth before 1.6.11 Insecure Cryptographic Defaults via oidcProviderPriority MEDIUM 40
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-67334
2026-10-03 Alias added: GHSA-gj53-4jmf-7745

References

Advisory 1

GitHub Security Advisory (GHSA-2vg6-77g8-24mp)

TI-2025-38277 Better Auth: Unauthenticated API key creation through api-key plugin CVSS 4.0CRITICAL 9.3
TI-2026-47627 better-auth SCIM 1.5.0 before 1.7.0-beta.4 Authorization Bypass CVSS 4.0HIGH 8.7
TI-2025-20000 Beter Auth has an Open Redirect via Scheme-Less Callback Parameter CVSS 4.0MEDIUM 6.9
TI-2026-13066 better-auth better-icons scan_project_icons/sync_icon path traversal CVSS 4.0MEDIUM 4.8
TI-2026-79320 OAuth state accepted as Magic Link token in Better Auth CVSS 3.1CRITICAL 9.1
TI-2026-74552 Authentication bypass in Better Auth Magic Link verification CVSS 4.0CRITICAL 9.3

See all 39 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences