GitLab: Mehrere Schwachstellen ermöglichen Manipulation von Dateien
WID-SEC-2026-2882 · first 18.08.2026 · updated 20.08.2026 · CVSS 9,4
What it is about
GitLab ist eine Webanwendung zur Versionsverwaltung für Softwareprojekte auf Basis von git. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um Dateien zu manipulieren.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- Dateien zu manipulieren
Am I affected?
Affected according to the BSI:
- Open Source GitLab <18.11.11
- Open Source GitLab <19.0.8
- Open Source GitLab <19.1.6
- Open Source GitLab <19.2.4
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source GitLab 18.11.11
- Open Source GitLab 19.0.8
- Open Source GitLab 19.1.6
- Open Source GitLab 19.2.4
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)
- GitLab Critical Patch Release: 19.2.4, 19.1.6, 19.0.8, 18.11.11 vom 2026-08-17 docs.gitlab.com
- GitLab Code Injection Flaw Exploited in the Wild vom 2026-08-19 www.databreachtoday.com
CVE: CVE-2026-19478, CVE-2026-19650
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.