CVE-2026-3121

| EUVD-2026-16307 MEDIUM
2026-03-26 redhat GHSA-7xf9-4jfc-wgm4
6.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 26, 2026 - 19:16 vuln.today
EUVD ID Assigned
Mar 26, 2026 - 19:16 euvd
EUVD-2026-16307
CVE Published
Mar 26, 2026 - 19:13 nvd
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.

Analysis

Keycloak allows authenticated administrators with manage-clients permission to escalate privileges to manage-permissions level, enabling unauthorized control over roles, users, and administrative functions within a realm. Red Hat Build of Keycloak, JBoss Enterprise Application Platform 8, and Red Hat Single Sign-On 7 are affected when admin permissions are enabled at the realm level. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

Vendor Status

Debian

Bug #1088287
keycloak
Release Status Fixed Version Urgency
open - -

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CVE-2026-3121 vulnerability details – vuln.today

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