CVE-2026-11986

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.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data tampering.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-06-11 18:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-08-11 12:58 UTC Last updatedMost recent change to the record

Details

Published

2026-06-11 18:16 UTC

Last modified

2026-08-11 12:58 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-425

Record status

Analyzed

Affected

• Redhat Build Of Keycloak < 26.6.5

Attack profile CVSS 3.1 · 4.9

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None