7.3
Élevée
CVE-2026-9086 A flaw was found in Keycloak
Description
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 et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Red Hat Build of Keycloak | Versions non publiées | |
| Red Hat build of Keycloak 26.6 26.6 | premières → < 26.6-8 | 26.6-8 |
| Red Hat build of Keycloak 26.6.4 | Versions non publiées | |
| Red Hat build of Keycloak 26.4 26.4 | premières → < 26.4-19 | 26.4-19 |
| Red Hat build of Keycloak 26.4.13 | Versions non publiées |
Références
- RHSA-2026:30049 access.redhat.com
- RHSA-2026:30050 access.redhat.com
- RHSA-2026:30083 access.redhat.com
- RHSA-2026:30084 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2480170 bugzilla.redhat.com
Chronologie
- Publiée
- Dernière modification
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