# CVE-2026-11986

## Summary

- **CVE ID:** CVE-2026-11986
- **Severity:** MEDIUM
- **CVSS Score:** 4.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N)
- **CWE:** CWE-425
- **Published:** Jun 11, 2026
- **Last Modified:** Aug 5, 2026

## Description

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.

## Affected Products

- Red Hat — Red Hat build of Keycloak 26.6 (26.6-11)
- Red Hat — Red Hat build of Keycloak 26.6 (26.6.5-1)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 22.5

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._