CVE-2026-96448 Keycloak-services: keycloak-services: fgap v2 composite-blind role mapping allows privilege escalation
A flaw in Keycloak's Fine-Grained Admin Permissions allows limited administrators to escalate privileges to full realm control via composite roles.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96448?
CVE-2026-96448 is a medium-severity vulnerability in Red Hat Build of Keycloak, published on 25 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw was found in the Fine-Grained Admin Permissions (FGAP v2) feature of Keycloak, an identity and access management solution. The issue occurs when the system checks if a delegated administrator has permission to assign a specific role to a user. Because the check does not look inside composite roles to see what other permissions they contain, an administrator with limited rights can assign a role that secretly includes full administrative control. This allows the attacker to gain complete management access over the entire realm.
Weakness: CWE-285
Which versions are affected by CVE-2026-96448?
How do I fix CVE-2026-96448?
No fix has been published for CVE-2026-96448 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-96448 being exploited?
There is no known exploitation of CVE-2026-96448 in the wild and no public exploit code.
Sources
Also known as GHSA-x6m6-7qg7-7r64.