CVE-2026-9795

A flaw was found in Keycloak's Fine-Grained Admin Permissions (FGAPv2) feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client's scope mapping. This bypasses intended security controls, allowing the injected role to be projected into a user's authentication token when they access the modified client. This could lead to unauthorized privilege escalation within the Keycloak realm.

CVSS 3.1

7.3CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-25)

CWE

CWE-266

Published

2026-05-28

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• redhat:build_of_keycloak

Packages (OSV)

References

• https://access.redhat.com/errata/RHSA-2026:30049
• https://access.redhat.com/errata/RHSA-2026:30050
• https://access.redhat.com/errata/RHSA-2026:30083
• https://access.redhat.com/errata/RHSA-2026:30084
• https://access.redhat.com/security/cve/CVE-2026-9795

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