CVE-2025-71435 json
Coder before 2.23.0 Session Expiration Bypass via OIDC Without Refresh Token
published 2025-08-28 14 mo ago modified 2026-10-24 15 d ago also EUVD-2025-211113 , GHSA-3rw9-wmc8-8948 , GO-2025-3921
- cvss
- 4.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 d ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.3 | 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 |
| CNA | 3.1 | 4.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
| CNA | 4.0 | 2.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/coder/coder/v2 | <2.23.0 |
2.23.0 |
| go | github.com/coder/coder | all versions |
no fix listed |
Affected products
- coder coder
Classification
References
-
github.com
/coder/coder/commit/1a4160803589034ce1518e24a78f232c8d08f996
web, patch
-
github.com
/coder/coder/security/advisories/GHSA-3rw9-wmc8-8948
vendor-advisory, web, advisory
-
vulncheck.com
/advisories/coder-before-2.23.0-session-expiration-bypass-via-oidc-without-refresh-token
third-party-advisory
-
github.com
/coder/coder
package
Sources
- CVE List CVE-2025-71435
- GitHub Advisory GHSA-3rw9-wmc8-8948
- NVD CVE-2025-71435
- OSV GO-2025-3921
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.