CVE-2026-56665 MEDIUM

CVE-2026-56665: ZITADEL: Missing Token Expiration (`exp`) Validation in JWT IdP Provider

Vendor Zitadel
Product zitadel
Weakness CWE-613 · Insufficient session expiration
Published July 10, 2026
Last update July 10, 2026
View on NVD All CVEs

CVSS base score

4.2/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 10, 2026 CVE published