SEPTEMBER 19, 2026
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Case File

CVE-2026-56664

MEDIUM · CVSS 4.2 EPSS 0.20% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-10 · Last synced 2026-08-09

CyberRota Analysis

AI-Generated

ZITADEL's identity management platform is vulnerable due to a flaw in its external JWT Identity Provider validation, which fails to enforce a maximum token age check when the incoming token lacks the 'iat' claim. This oversight allows potentially outdated tokens from trusted issuers to authenticate, posing a risk of unauthorized access. Organizations using versions prior to 3.4.12 and 4.15.2 should prioritize upgrading to mitigate this security risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-56664
Severity
MEDIUM
CVSS
4.2
EPSS
0.20%

Original NVD 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.