Auth bypass in Zitadel

CVE-2026-32131

ZITADEL is an open source identity management platform. Prior to 3.4.8 and 4.12.2, a vulnerability in Zitadel's Management API has been reported, which allowed authenticated users holding a valid low-privilege token (e.g., project.read, project.grant.read, or project.app.read) to retrieve management-plane information belonging to other organizations by specifying a different tenant’s project_id, grant_id, or app_id. This vulnerability is fixed in 3.4.8 and 4.12.2.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (31.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-32131: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

  • Zitadel — versions >= 4.0.0, < 4.12.2, < 3.4.8

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-32131?
CVE-2026-32131 is a high-severity vulnerability in Zitadel, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.7/10. Published 2026-03-11.
How severe is CVE-2026-32131?
High severity. CVSS v3 base score is 7.7 out of 10.