CVE-2026-11577

HIGH

Keycloak: keycloak: privilege escalation via partialimport fgap permission bypass

Title source: cna

Description

A flaw was found in Keycloak. A limited administrator can exploit an improper access control vulnerability in the POST /admin/realms/{realm}/partialImport endpoint. This allows them to bypass Fine-Grained Admin Permissions (FGAP) and escalate their privileges to a full realm administrator by importing users with realm-admin role mappings.

References (3)

Core 3

Core References

Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat

RHBZ#2459993

https://bugzilla.redhat.com/show_bug.cgi?id=2459993

Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2026-11577

https://github.com/keycloak/keycloak/issues/9387

Scores

CVSS v3 7.2

EPSS 0.0032

EPSS Percentile 23.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-863

Status published

Products (5)

Red Hat/Red Hat Build of Keycloak

Red Hat/Red Hat Data Grid 8

Red Hat/Red Hat JBoss Enterprise Application Platform 8

Red Hat/Red Hat JBoss Enterprise Application Platform Expansion Pack

Red Hat/Red Hat Single Sign-On 7

Published Jun 08, 2026

Tracked Since Jun 08, 2026