CVE-2026-56664
ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:LIntegrityLow
A:NAvailabilityNone
Weaknesses
Affected Products
zitadel
commercialaka zitadel identity
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Defense Evasion
Initial Access
References
https://github.com/zitadel/zitadel/security/advisories/GHSA-wxg7-w2v3-w38g
github.com
https://github.com/zitadel/zitadel/commit/4925fab849d39a88674485d937b79e54318b48a8
github.com
https://github.com/zitadel/zitadel/commit/d1c3aa84af8fcb0f33910ada30b866f4afb551ac
github.com
and 2 more references View all →
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