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CVE-2026-3121

MEDIUM

6.5

Description

A flaw was found in Keycloak. An administrator with `manage-clients` permission can exploit a misconfiguration where this permission is equivalent to `manage-permissions`. This allows the administrator to escalate privileges and gain control over roles, users, or other administrative functions within the realm. This privilege escalation can occur when admin permissions are enabled at the realm level.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published3/26/2026

Last Modified4/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

redhat:build_of_keycloakredhat:jboss_enterprise_application_platformredhat:jboss_enterprise_application_platform_expansion_packredhat:single_sign-on

Weaknesses (CWE)

CWE-266

References

https://access.redhat.com/errata/RHSA-2026:6477(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:6478(secalert@redhat.com)

https://access.redhat.com/security/cve/CVE-2026-3121(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2442277(secalert@redhat.com)

IOC Correlations

No correlations recorded

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