What is CVE-2026-15945?

CVE-2026-15945 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-07-16.

How severe is CVE-2026-15945?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Red Hat Build Of Keycloak

CVE-2026-15945

A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they a…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-15945?: CVE-2026-15945 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-07-16.
How severe is CVE-2026-15945?: Medium severity. CVSS v3 base score is 4.3 out of 10.