HIGHnpm

Better Auth: OAuth callback accepts mismatched `state` when cookie-backed state storage is used without PKCE

Better Auth: OAuth callback accepts mismatched `state` when cookie-backed state storage is used without PKCE

CVE-2026-67335Published 2 months agoUpdated 3 days agoSource: OSV

Affected packages

  • better-auth

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
0.17%
EPSS percentile
6.8%

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs. This advisory is in the top 7%.

Better Auth: OAuth callback accepts mismatched `state` when cookie-backed state storage is used without PKCE | HackTribune