Drupal (SAML SSO): Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2026-0954 · first 02.04.2026 · updated 29.05.2026 · CVSS 7,4
What it is about
Drupal ist ein freies Content-Management-System, basierend auf der Scriptsprache PHP und einer SQL-Datenbank. Über zahlreiche Extensions kann der Funktionsumfang der Core-Installation individuell erweitert werden. Ein Angreifer kann eine Schwachstelle in Drupal SAML SSO ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- Open Source Drupal SAML SSO <3.1.4
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source Drupal SAML SSO 3.1.4
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Drupal Security Advisory sa-contrib-2026-031 vom 2026-04-01 www.drupal.org
CVE: CVE-2026-5343
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.