https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 07:21:14 +0000 https://vulnerability.circl.lu/vuln/cve-2026-7507 <p><strong>Affected:</strong> Red Hat build of Keycloak 26.2, Red Hat build of Keycloak 26.2.16, Red Hat build of Keycloak 26.4, Red Hat build of Keycloak 26.4.12, Red Hat Single Sign-On 7</p> <p>A session fixation vulnerability was found in Keycloak&#39;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&#39;s credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.</p> <p><strong>Affected:</strong> Red Hat build of Keycloak 26.2, Red Hat build of Keycloak 26.2.16, Red Hat build of Keycloak 26.4, Red Hat build of Keycloak 26.4.12, Red Hat Single Sign-On 7</p> <p>A session fixation vulnerability was found in Keycloak&#39;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&#39;s credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.</p> https://vulnerability.circl.lu/vuln/cve-2026-7507