CVE-2026-3911

Name: CVE-2026-3911
Creator: NVD / NIST
Published: 2026-03-11T06:17:15.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.7/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2026-3911 is a low-severity vulnerability rated 2.7/10 on the CVSS scale. A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

2.7/10

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

EPSS Probability

0.33%

25.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-359

Affected Software

Vendor	Product	Versions
Redhat	Build Of Keycloak	All versions
Redhat	Build Of Keycloak	26.4
Redhat	Build Of Keycloak	26.4.11

References

https://access.redhat.com/errata/RHSA-2026:6477Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6478Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-3911Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2446392Issue Tracking

Timeline

Published: Mar 11, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3911?

How severe is CVE-2026-3911?

CVE-2026-3911 has a CVSS score of 2.7/10 (LOW severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3911?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3911?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST