What’s Vulnerable › Vulnerabilities

CVE-2026-96448: Keycloak-services: keycloak-services: fgap v2 composite-blind role mapping allows privilege escalation

• Severity: medium (CVSS 6.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-25 · updated 2026-09-26
• Weakness: CWE-285

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.

Affected products

• Red Hat build of Keycloak 26.4: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-96448
• https://bugzilla.redhat.com/show_bug.cgi?id=2539291

Get alerted when CVE-2026-96448 or the next vulnerability affects your stack