6.9
Medium
CVE-2026-37980 A flaw was found in Keycloak, specifically in the organization selection login page
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Build of Keycloak | Versions not published | |
| Red Hat build of Keycloak 26.4.12 | Versions not published |
References
- RHSA-2026:19596 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2455325 bugzilla.redhat.com
Timeline
- Published
- Last modified
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