CVE-2026-11986CWE-425

CVE-2026-11986

Medium · published June 11, 2026

CVSS v3.1

4.9

EPSS

Percentile

21.7

In the wild

Unconfirmed

What it is

A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities. The issue occurs because certain bulk role-removal endpoints fail to perform granular permission checks when deleting role mappings. This allows a delegated administrator with limited permissions to remove highly privileged roles from other users or groups, potentially disrupting administrative access control.

The record

Technical detail

CVSS v3.1: 4.9 · MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0: Not supplied
EPSS: 0.00301 · 21.7th percentile
Weakness: CWE-425 · Direct Request ('Forced Browsing')
Published: 2026-06-11T22:16Z

Affected products (1)

Product	Versions	Fixed in
redhat/build_of_keycloak	≥ 26.6, < 26.6.5	26.6.5

References (4)

https://access.redhat.com/errata/RHSA-2026:50848 · [email protected]https://access.redhat.com/errata/RHSA-2026:50849 · [email protected]https://access.redhat.com/security/cve/CVE-2026-11986 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2487906 · [email protected]

EPSS history

Timeline

11 JUN 16:47Z
Keycloak-rest-admin-ui-ext: authorization bypass vulnerability in the admin-ui-ext bulk role-mapping-delete endpoints of keycloak
cvelistv5