CVE-2025-71435

Coder before 2.23.0 Session Expiration Bypass via OIDC Without Refresh Token

MEDIUM
4.2
CVSS Score
Published: October 17, 2026 at 06:46 PM UTC
Updated: October 24, 2026 at 07:10 PM UTC
1 product affected across 1 vendorCoder

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Severity
MEDIUM4.2
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
Vendor states this is fixed in 2.23.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.2MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-613

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