CVE-2025-71435

Coder before 2.23.0 Session Expiration Bypass via OIDC Without Refresh Token

State: Published
Severity: 2.3 Low
Published: Oct 17, 2026
Updated: Oct 19, 2026
Reserved: Oct 17, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	2.3 Low	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	4.2 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N	VulnCheck

Weaknesses

CWE-613 Insufficient Session Expiration

Affected Products

Product	Versions
codercoder	before 2.23.0Affected 2.23.0Not affected

References

GitHub Security Advisory (GHSA-3rw9-wmc8-8948)vendor-advisory
VulnCheck Advisory: Coder before 2.23.0 Session Expiration Bypass via OIDC Without Refresh Tokenthird-party-advisory

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