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OpenAdvisories
Medium · 6.6 Public exploit CVE-2026-94000 EUVD-2026-83601GHSA-3g7j-6fqv-v2q4

Keycloak-services: keycloak-services: delegated admin with manage-users can escalate to realm-admin via group membership

Published Sep 19, 2026 · Updated Nov 6, 2026 · Assigned by redhat

Vendor: Red Hat Product: Red Hat build of Keycloak 26.6 Product: Red Hat build of Keycloak 26.6.8 Product: Red Hat Single Sign-On 7

Description

A flaw was found in the Admin REST API of Keycloak, an open-source identity and access management solution. The issue occurs in the group-membership endpoints where the system fails to check if a group grants administrative privileges before allowing a user to be added. This allows a delegated administrator with limited permissions to add themselves to a high-privilege group, potentially gaining full control over the entire realm.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat build of Keycloak 26.6 — —
Red Hat Red Hat build of Keycloak 26.6.8 — —
Red Hat Red Hat Single Sign-On 7 — —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • SecFathy/KeycloakESC ★ 3 · Oct 22, 2026

    Reproducible Docker lab + PoC: Keycloak manage-users -> realm-admin escalation via composite roles (CVE-2026-94000 variant). Validated on 26.8.1.

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 1

References