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CVE-2026-3911

Org.keycloak.services.resources.admin.userresource: keycloak: information disclosure of disabled user attributes via administrative endpoint

Published: Mar 11, 2026Updated: May 7, 2026 Sources: CVE List NVD GHSACWE-359
NVD MITRE
2.7CVSSLOW
EPSS Score
0.3%
Top 75.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-359NVD-CWE-noinfo

Affected Products

Red Hat build of Keycloak 26.4Red Hat
On-premWeb App
Web & CMS Plugins
Red Hat build of Keycloak 26.4.11Red Hat
On-prem
Operating Systems / linux-distro
build of keycloakredhat
On-prem
Security Products / identity-access-mgmt
org.keycloak:keycloak-servicesMavenOSS Libraries
red hatcommercialUSOperating Systemsaka red hat
redhatcommercialUSOperating Systemsaka red hat
mavenpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available
Workaround Available

References

https://access.redhat.com/errata/RHSA-2026:6477
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:6478
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-3911
access.redhat.com
and 6 more references View all →

Timeline

Published
Mar 11, 2026
Last Updated
May 7, 2026

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