CVE-2026-37980
4.8 MoyenneDescription
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.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 6.9 Moyenne | secalert@redhat.com | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N |
| 3.1 | 4.8 Moyenne | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:19596
- https://access.redhat.com/security/cve/CVE-2026-37980 MitigationVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2455325 Issue TrackingVendor Advisory