GitLab: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2026-1727 · first 29.05.2026 · updated 29.05.2026 · CVSS 4,3
What it is about
GitLab ist eine Webanwendung zur Versionsverwaltung für Softwareprojekte auf Basis von git. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in GitLab ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
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 GitLab <18.10.7
- Open Source GitLab <18.11.4
- Open Source GitLab <19.0.1
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 18.10.7
- Open Source GitLab 18.11.4
- Open Source GitLab 19.0.1
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)
- GitHub Security Advisory GHSA-77hj-c554-4343 vom 2026-05-28 github.com
- EUVD-2026-32742 vom 2026-05-28 euvd.enisa.europa.eu
CVE: CVE-2026-9807
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.