Vulnerability Details CVE-2026-37980
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 15.8%
CVSS Severity
CVSS v3 Score 6.9
References
Products affected by CVE-2026-37980
-
cpe:2.3:a:redhat:build_of_keycloak:-