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CVE-2026-3911

2.7 · LOW

A flaw was found in Keycloak.

Published Mar 11, 2026CWE-359EPSS 0.41%

Overview

CVE-2026-3911 is a low-severity vulnerability. It was published on March 11, 2026 and has a CVSS 3.1 base score of 2.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.7, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2026:6477Refaccess.redhat.com/errata/RHSA-2026:6478Refaccess.redhat.com/security/cve/CVE-2026-3911Refbugzilla.redhat.com/show_bug.cgi?id=2446392

How CyberStrike helps

Frequently asked questions

What is CVE-2026-3911?

CVE-2026-3911 is a low-severity vulnerability. It was published on March 11, 2026 and has a CVSS 3.1 base score of 2.7 (LOW).

How severe is CVE-2026-3911?

This vulnerability has a CVSS 3.1 base score of 2.7, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-3911?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-3911?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-3911 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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