CVE-2026-7507 A session fixation vulnerability was found in Keycloak's login-actions endpoints
Description
A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted link. By leveraging the /login-actions/restart endpoint—which processes session handles without adequate CSRF protection or cookie ownership validation—an attacker can reset the authentication flow state. This causes Single Sign-On (SSO) to authenticate the victim transparently upon clicking the link, allowing the attacker to hijack the required-action form without needing the victim's credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Red Hat Build of Keycloak | Versions non publiées | |
| Red Hat build of Keycloak 26.2.16 | Versions non publiées | |
| Red Hat build of Keycloak 26.4 26.4 | premières → < 26.4-17 | 26.4-17 |
| Red Hat build of Keycloak 26.2 26.2 | premières → < 26.2-21 | 26.2-21 |
| Red Hat build of Keycloak 26.4.12 | Versions non publiées | |
| Red Hat Single Sign-On 7 | Versions non publiées | |
| Red Hat Single Sign-On 7.6.13 | Versions non publiées | |
| RHEL-8 based Middleware Containers 7.6 | premières → < 7.6-85 | 7.6-85 |
| Red Hat Single Sign-On 7.6 for RHEL 8 | Versions non publiées |
Afficher les 2 autres branches Masquer les 2 autres branches
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Red Hat Single Sign-On 7.6 for RHEL 9 | Versions non publiées | |
| Red Hat Single Sign-On 7.6 for RHEL 7 | Versions non publiées |
Références
- RHSA-2026:19594 access.redhat.com
- RHSA-2026:19595 access.redhat.com
- RHSA-2026:19596 access.redhat.com
- RHSA-2026:19597 access.redhat.com
- RHSA-2026:76128 access.redhat.com
- RHSA-2026:76129 access.redhat.com
- RHSA-2026:76130 access.redhat.com
- RHSA-2026:76132 access.redhat.com
- RHSA-2026:76134 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2464145 bugzilla.redhat.com
Chronologie
- Publiée
- Dernière modification