CVE-2026-9099
CVE-2026-9099: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.7
High [CVE-2026-9099] Group-Admin Escalation to Realm-Admin
CVE-2026-9099Source published Source updated
A flaw was found in Keycloak. A missing authorization check in the GroupResource.addChild() endpoint within the Admin REST API allows an authenticated user with limited administrative privileges to reparent any existing group. When Fine-Grained Admin Permissions v2 (FGAPv2) is enabled, an attacker with management rights over a single low-privilege group can reparent a highly privileged group (such as one possessing the realm-admin role) under their managed group. Because group permissions follow a hierarchical structure, this action unauthorizedly grants the attacker management and password-reset capabilities over the members of the targeted privileged group. An attacker can exploit this to reset an administrator's password, compromise the account, and achieve a full realm takeover…
- Affected products in this advisory
- Red Hat build of Keycloak 26.4.13
- Red Hat build of Keycloak 26.6.4
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- rhbk/keycloak-operator-bundle:26.4.13-1
- rhbk/keycloak-rhel9:26.4-19
- rhbk/keycloak-rhel9-operator:26.4-19
- rhbk/keycloak-rhel9
7 more entries in the full advisory.
- Mitigation guidance
- To mitigate this issue, restrict network access to the Keycloak Admin REST API to only trusted networks or localhost. This limits the attack surface by preventing unauthorized access to the API endpoints required for exploitation. Consult your network security documentation for specific firewall or network access control configurations. This may impact remote administration capabilities.
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