Auth bypass in Zitadel
CVE-2025-27507
The open-source identity infrastructure software Zitadel allows administrators to disable the user self-registration. ZITADEL's Admin API contains Insecure Direct Object Reference (IDOR) vulnerabilities that allow authenticated users, without specific IAM roles, to modify sensitive settings. While several endpoints are affected, the most critical vulnerability lies in the ability to manipulate LDAP configurations. Customers who do not utilize LDAP for authentication are not at risk from the most severe aspects of this vulnerability. However, upgrading to the patched version to address all identified issues is strongly recommended. This vulnerability is fixed in 2.71.0, 2.70.1, ,2.69.4, 2.68.4, 2.67.8, 2.66.11, 2.65.6, 2.64.5, and 2.63.8.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.006 (44.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L.
Affected products
- Zitadel — versions >= 2.63.0-rc.1, < 2.63.8, >= 2.64.0-rc.1, < 2.64.5, >= 2.66.0-rc.1, < 2.66.11
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-27507?
- CVE-2025-27507 is a critical-severity vulnerability in Zitadel, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.0/10. Published 2025-03-04.
- How severe is CVE-2025-27507?
- Critical severity. CVSS v3 base score is 9.0 out of 10.