Veille CVE
CVE-2026-9086
7.3 ÉlevéeDescription
A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with `manage-client` permission or access to client registration endpoints, could bypass client Uniform Resource Identifier (URI) validation. This is achieved by registering a malicious client with a specially crafted redirect URI using a case-insensitive `javascript:` or `data:` scheme. This Cross-Site Scripting (XSS) vulnerability allows for arbitrary code execution in the Keycloak origin when a victim clicks the crafted link, such as in the logout flow or the Admin Console.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 7.3 Élevée | secalert@redhat.com | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
| 3.1 | 7.3 Élevée | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:30049 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30050 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30083 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30084 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-9086 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2480170 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30049 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30050 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30083 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:30084 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-9086 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2480170 Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9086.json Third Party Advisory