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CVE-2026-3121

24
FAUCET Score

CVE-2026-3121 identifies a privilege escalation vulnerability in Keycloak, where an administrator with 'manage-clients' permission can effectively gain 'manage-permissions' capabilities when realm-level admin permissions are enabled. This allows the attacker to escalate privileges and gain control over roles, users, and other administrative functions within the realm. Rated 6.5 MEDIUM, this vulnerability has a network attack vector and low attack complexity, but requires high privileges for exploitation, leading to high impact on confidentiality and integrity. Currently, there is no known active exploitation or public exploit code available, and community discussion is minimal since its recent publication.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*
8.0.0CPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 15th percentile among its peer group of 5,537 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

mavenpatch availablevia ghsa
Product: org.keycloak:keycloak-servicesFixed in: 26.5.6
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform 8Fixed in: keycloak-services
redhatvendor investigatingvia redhat_api
Product: Red Hat JBoss Enterprise Application Platform Expansion PackFixed in: keycloak-services
redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Build of KeycloakFixed in: rhbk/keycloak-rhel9

Vendor Advisories (2)

mavenGHSA-7xf9-4jfc-wgm4medium

Keycloak: manage-clients permission escalates to full realm admin access

Mar 26, 2026
redhatCVE-2026-3121Moderate

keycloak: org.keycloak/keycloak-services: Keycloak: Privilege escalation via manage-clients permission

Feb 24, 2026

References

access.redhat.com / errata/RHSA-2026:6477
access.redhat.com / errata/RHSA-2026:6478
access.redhat.com / security/cve/CVE-2026-3121
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory