Zero Radar
← feed
CriticalVulnerabilityupdated 28 Oct 2026, 12:45 UTC

GitLab: several flaws let attackers run code and access data

Attackers could exploit several security holes in GitLab to run their own commands on the server, read information they should not see, or change data. Patching is the way to close these gaps.

Official source
SeverityCriticalVulnerability
Being exploited?UnclearNo reports either way yet
Fix available?UnclearNo fixed version published in the sources yet
How sure is this?Official sourceBacked by an official source

What happened

Multiple vulnerabilities in GitLab allow remote arbitrary code execution, information disclosure, data manipulation, cross-site scripting, and security control bypass. The BSI advisory marks them as critical.

Why it is dangerous: A successful attack can give an attacker control over the GitLab server and the source code, secrets, and projects stored in it, affecting developers and the organisations that depend on it.

Are you affected?

You are affected if you run a self-managed GitLab instance with a version listed as vulnerable in the BSI advisory.

What to do

  1. Check the BSI advisory (CERT-Bund) and GitLab's security release notes for the exact affected and fixed versions
  2. Update your self-managed GitLab instance to a fixed version as soon as possible
  3. Review access logs and user accounts for signs of unusual activity if you cannot update immediately

Timeline

  1. 28 Oct 2026, 12:40 UTC
    Publicly disclosed
  2. 28 Oct 2026, 12:40 UTC
    Reported by CERT-Bund (BSI) · CERT-Bund (BSI)
  3. 28 Oct 2026, 12:41 UTC
    Reported by CERT-Bund (BSI) · CERT-Bund (BSI)
  4. 28 Oct 2026, 12:45 UTC
    Picked up by Zero Radar

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
ZR-db32c6db · ZR-75a6fd2f
Disclosed
28 Oct 2026, 12:40 UTC
On Zero Radar
28 Oct 2026, 12:45 UTC (4 min after disclosure)
Last change
28 Oct 2026, 12:45 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

GitLab: several flaws let attackers run code and access data · Zero Radar