CVE-2026-56664
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…
Does this matter?
Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 4.2 MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-613
- Source
- security-advisories@github.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.