CVE-2025-71435

Coder before 2.23.0 contains a session expiration bypass vulnerability that allows authenticated users to retain access after OIDC token expiry when no refresh token is issued. Users can keep their APIKey cookie active through regular use, extending it every 24 hours to access Coder indefinitely after losing OIDC authorization.

Score

CVSS 3.1 4.2 Medium

Status

Awaiting Analysis - disclosure@vulncheck.com

Published

2026-10-17

Last modified

2026-10-24

Weaknesses

CWE-613

Affected products

• Coder (Coder)

References

• https://github.com/coder/coder/security/advisories/GHSA-3rw9-wmc8-8948
• https://www.vulncheck.com/advisories/coder-before-2.23.0-session-expiration-bypass-via-oidc-without-refresh-token