CVE-2026-11986

MediumCVSS 4.9/10Last modified Aug 11, 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.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-425

Affected software

VendorProductVersions
Red HatRed Hat build of Keycloak 26.6—
Red HatRed Hat build of Keycloak 26.6—
Red HatRed Hat build of Keycloak 26.6—
Red HatRed Hat build of Keycloak 26.6.5—
Red HatRed Hat build of Keycloak 26.6.5—
Red HatRed Hat build of Keycloak 26.6.5—
Red HatRed Hat JBoss Enterprise Application Platform Expansion Pack—

References

Timeline

Published
Jun 11, 2026
Last modified
Aug 11, 2026
NVD status
Analyzed

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CVE-2026-11986: Medium severity, CVSS 4.9 | Vulnix