ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider

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Summary

CVECVE-2026-56664
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-10 18:16:23 UTC
Updated2026-07-10 19:17:26 UTC
DescriptionZITADEL 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.

Risk And Classification

Primary CVSS: v3.1 4.2 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.002030000 probability, percentile 0.103280000 (date 2026-07-13)

Problem Types: CWE-613 | CWE-613 CWE-613: Insufficient Session Expiration

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED4.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Zitadel Zitadel affected >= 4.0.0-rc.1, < 4.15.2 Not specified
CNA Zitadel Zitadel affected < 3.4.12 Not specified

References

ReferenceSourceLinkTags
github.com/zitadel/zitadel/security/advisories/GHSA-wxg7-w2v3-w38g [email protected] github.com
github.com/zitadel/zitadel/commit/4925fab849d39a88674485d937b79e54318b48a8 [email protected] github.com
github.com/zitadel/zitadel/releases/tag/v3.4.12 [email protected] github.com
github.com/zitadel/zitadel/releases/tag/v4.15.2 [email protected] github.com
github.com/zitadel/zitadel/commit/d1c3aa84af8fcb0f33910ada30b866f4afb551ac [email protected] github.com
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