High severity7.2NVD Advisory· Published Jun 8, 2026· Updated Jun 9, 2026

CVE-2026-11577

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Red Hat/Build Of Keycloakreferences
Keycloak/Keycloakllm-fuzzy

Patches

Vulnerability mechanics

References

access.redhat.com/security/cve/CVE-2026-11577nvd
bugzilla.redhat.com/show_bug.cginvd
github.com/keycloak/keycloak/issues/9387nvd

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