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CVE-2026-37980

6.9 · MEDIUM

A flaw was found in Keycloak, specifically in the organization selection login page.

Published Apr 14, 2026CWE-79EPSS 0.38%

Overview

CVE-2026-37980 is a medium-severity vulnerability. It was published on April 14, 2026 and has a CVSS 3.1 base score of 6.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A flaw was found in Keycloak, specifically in the organization selection login page. A remote attacker with `manage-realm` or `manage-organizations` administrative privileges can exploit a Stored Cross-Site Scripting (XSS) vulnerability. This flaw occurs because the `organization.alias` is placed into an inline JavaScript `onclick` handler, allowing a crafted JavaScript payload to execute in a user's browser when they view the login page. Successful exploitation enables arbitrary JavaScript execution, potentially leading to session theft, unauthorized account actions, or further attacks against users of the affected realm.

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/security/cve/CVE-2026-37980Refbugzilla.redhat.com/show_bug.cgi?id=2455325

How CyberStrike helps

Frequently asked questions

What is CVE-2026-37980?

CVE-2026-37980 is a medium-severity vulnerability. It was published on April 14, 2026 and has a CVSS 3.1 base score of 6.9 (MEDIUM).

How severe is CVE-2026-37980?

This vulnerability has a CVSS 3.1 base score of 6.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-37980?

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-2026-37980?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-37980 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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