GitLab: Mehrere Schwachstellen
WID-SEC-2026-4115 · first 22.10.2026 · updated 28.10.2026 · CVSS 10,0
What it is about
GitLab ist eine Webanwendung zur Versionsverwaltung für Softwareprojekte auf Basis von git. Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, erweiterte Berechtigungen zu erlangen, Daten zu manipulieren oder Informationen offenzulegen.
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
- beliebigen Code auszuführen
- Sicherheitsmaßnahmen zu umgehen
- erweiterte Berechtigungen zu erlangen
- Daten zu manipulieren oder Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- Open Source GitLab <19.5.1
- Open Source GitLab <19.4.3
- Open Source GitLab <19.3.6
- Open Source GitLab <19.2.9
- Open Source GitLab <19.1.9
- Open Source GitLab <19.0.10
- Open Source GitLab <18.11.13
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 19.5.1
- Open Source GitLab 19.4.3
- Open Source GitLab 19.3.6
- Open Source GitLab 19.2.9
- Open Source GitLab 19.1.9
- Open Source GitLab 19.0.10
- Open Source GitLab 18.11.13
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 vom 2026-10-21 docs.gitlab.com
- Red Hat Security Advisory RHSA-2026:88880 vom 2026-10-28 access.redhat.com
- Red Hat Security Advisory RHSA-2026:88865 vom 2026-10-28 access.redhat.com
- Red Hat Security Advisory RHSA-2026:88861 vom 2026-10-28 access.redhat.com
CVE: CVE-2026-103515, CVE-2026-105711, CVE-2026-105777, CVE-2026-112212, CVE-2026-112326, CVE-2026-112378, CVE-2026-12664, CVE-2026-13319, CVE-2026-14288, CVE-2026-15723, CVE-2026-16255, CVE-2026-110264
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.