CVSS 3.1
4.2 mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:NCVE-2026-56664
Medium (4.2). EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/zitadel/zitadel 1.80.0-v2.20.0.20260615122908-fad02c6d9f45.
ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validation in internal/idp/providers/jwt/session.go skips the maximum token age freshness check when an incoming token omits the iat claim, allowing arbitrarily old tokens from a trusted issuer to pass authentication. This issue is fixed in versions 3.4.12 and 4.15.2.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
- CWE
- CWE-613
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-wxg7-w2v3-w38g | Go | github.com/zitadel/zitadel | <1.80.0-v2.20.0.20260615122908-fad02c6d9f45 | 1.80.0-v2.20.0.20260615122908-fad02c6d9f45 |
| GO-2026-5732 | Go | github.com/zitadel/zitadel | <1.80.0-v2.20.0.20260615122908-fad02c6d9f45 | 1.80.0-v2.20.0.20260615122908-fad02c6d9f45 |
References
- https://github.com/zitadel/zitadel/commit/4925fab849d39a88674485d937b79e54318b48a8
- https://github.com/zitadel/zitadel/commit/d1c3aa84af8fcb0f33910ada30b866f4afb551ac
- https://github.com/zitadel/zitadel/releases/tag/v3.4.12
- https://github.com/zitadel/zitadel/releases/tag/v4.15.2
- https://github.com/zitadel/zitadel/security/advisories/GHSA-wxg7-w2v3-w38g