CVE-2026-56665

MEDIUM

ZITADEL: Missing Token Expiration (`exp`) Validation in JWT IdP Provider

Title source: cna
STIX 2.1

Description

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.

References (5)

Core 5

Scores

CVSS v3 4.2
EPSS 0.0017
EPSS Percentile 6.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-613
Status published
Products (2)
zitadel/zitadel < 3.4.12
zitadel/zitadel >= 4.0.0-rc.1, < 4.15.2
Published Jul 10, 2026
Tracked Since Jul 10, 2026