Threat landscape
high

GitLab: Mehrere Schwachstellen

WID-SEC-2023-3041 · first 01.12.2023 · updated 04.02.2026 · CVSS 8,7

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What it is about

GitLab ist eine Webanwendung zur Versionsverwaltung für Softwareprojekte auf Basis von git. Ein entfernter Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Dateien zu manipulieren, seine Berechtigungen zu erweitern oder XSS-Angriffe durchzuführen.

Under what conditions?

Over the network.

What can happen in the worst case

An attacker could use the vulnerability to

  • Sicherheitsmaßnahmen zu umgehen
  • einen Denial-of-Service-Zustand herbeizuführen
  • vertrauliche Informationen offenzulegen
  • Dateien zu manipulieren
  • seine Berechtigungen zu erweitern oder XSS-Angriffe durchzuführen

Am I affected?

Affected according to the BSI:

  • Open Source GitLab <16.6.1
  • Open Source GitLab <16.5.3
  • Open Source GitLab <16.4.3
  • RESF Rocky Linux

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

  • Open Source GitLab 16.6.1
  • Open Source GitLab 16.5.3
  • Open Source GitLab 16.4.3

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

CVE: CVE-2022-41409, CVE-2023-3401, CVE-2023-3443, CVE-2023-39417, CVE-2023-3949, CVE-2023-3964, CVE-2023-4317, CVE-2023-4658, CVE-2023-4912, CVE-2023-5226, CVE-2023-5995, CVE-2023-6033, CVE-2023-6396

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.

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