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DRUPAL-CONTRIB-2026-135

2026-10-22T23:46:50.312362+00:00

Affected: Packagist:https://packages.drupal.org/8: drupal/cas_server

This module enables you to turn a Drupal install into the Central Authentication System (CAS) Server. It makes your database the primary location for other systems to use for authentication in a SSO environment.

The module doesn't sufficiently check the service URL used to redirect the user during logout, leading to an open redirect.

This vulnerability is mitigated by the fact that an attacker must convince a user to click a specially crafted link. The vulnerability cannot be exploited without user interaction and does not allow an attacker to directly compromise the CAS server or bypass authentication.

fkie_cve-2026-87937

2026-10-22T23:46:50.312457+00:00

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Central Authentication System (CAS) Server allows Fake the Source of Data. This issue affects Central Authentication System (CAS) Server versions: from 0.0.0 to 2.0.4, from 2.1.0 to 2.1.3.

GHSA-9m9j-x6cp-vc3f

2026-10-22T23:46:50.312490+00:00

WID-SEC-W-2026-3284 — Drupal Erweiterungen: Mehrere Schwachstellen

2026-10-22T23:46:50.312510+00:00

Ein Angreifer kann mehrere Schwachstellen in Drupal ausnutzen, um Datenbankinhalte zu manipulieren oder auszulesen, Zugriffsbeschränkungen und Authentifizierungsmechanismen zu umgehen, vertrauliche Informationen offenzulegen, Cross Site Scripting Angriffe auszuführen, Benutzer auf manipulierte Webseiten umzuleiten, SAML-Authentifizierungen zu beeinflussen oder wiederzuverwenden, interne Ressourcen über SSRF anzusprechen sowie unberechtigt Dateien auf den Server hochzuladen.