CVE-2026-56664
Published:July 10, 2026
Updated:July 21, 2026
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.
Affected Packages
https://github.com/zitadel/zitadel.git (GITHUB):
Affected version(s) >=v4.0.0 <v4.15.2Fix Suggestion:
Update to version v4.15.2https://github.com/zitadel/zitadel.git (GITHUB):
Affected version(s) >=v0.0.0 <v3.4.12Fix Suggestion:
Update to version v3.4.12Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Insufficient Session Expiration
EPSS
Base Score:
0.20