CVE-2024-39683: ZITADEL Vulnerable to Session Information Leakage

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-07-03 · updated 2026-06-17
Weakness: CWE-200

Description

ZITADEL is an open-source identity infrastructure tool. ZITADEL provides users the ability to list all user sessions of the current user agent (browser). Starting in version 2.53.0 and prior to versions 2.53.8, 2.54.5, and 2.55.1, due to a missing check, user sessions without that information (e.g. when created though the session service) were incorrectly listed exposing potentially other user's sessions. Versions 2.55.1, 2.54.5, and 2.53.8 contain a fix for the issue. There is no workaround since a patch is already available.

Affected products

zitadel: from 2.53.0 before 2.53.8; from 2.54.0 before 2.54.5; 2.55.0, 2.55.0-rc1 — fixed in 2.53.8, 2.54.5

How to fix

Upgrade to a fixed version: zitadel 2.53.8, 2.54.5. Check the vendor advisory for mitigations.

References

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