CVE-2026-56665: Zitadel

Medium severity, CVSS 4.2. EPSS: 0.3% chance of exploitation in the next 30 days.

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL is an open source identity management platform. From 3.0.0-rc.1 through 3.4.11 and from 4.0.0-rc.1 through 4.15.1, ZITADEL's external JWT Identity Provider validation in internal/idp/providers/jwt/session.go skips expiration handling when an incoming token omits the exp claim, allowing a token from a trusted issuer to be treated as valid without an automatic expiration window. This issue is fixed in versions 3.4.12 and 4.15.2.

Affected products

• Zitadel Zitadel: from 4.0.0-rc.1, before 4.15.2 (fixed in 4.15.2); before 3.4.12 (fixed in 3.4.12)

Published 2026-07-10. Last modified 2026-07-10.