CVE-2026-56664

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

Published Jul 10, 2026 CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-wxg7-w2v3-w38g ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider
History
Type Values Removed Values Added
First Time appeared Zitadel
Zitadel zitadel
Vendors & Products Zitadel
Zitadel zitadel
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider
Weaknesses CWE-613
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 10, 2026, 6:01 PM
Reserved
Jun 22, 2026, 4:39 PM
Status
Deferred
Published
Jul 10, 2026, 6:16 PM
Modified
Jul 10, 2026, 7:17 PM