CVE-2026-6336 Incorrect Authorization in GitLab

What is CVE-2026-6336?

CVE-2026-6336 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.6 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an unauthorized user to view project import source information due to a missing authorization check.

Weakness: CWE-863

Which versions are affected by CVE-2026-6336?

1 open source package ship an affected version, including gitlab. It affects 1 product.

Products include Gitlab Gitlab.

How do I fix CVE-2026-6336?

Upgrade gitlab to a fixed version for your release line: 19.0.5, 19.1.3 or 19.2.1.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-6336 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6336 exists.

Other vulnerabilities in Gitlab Gitlab

• CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Exploited Critical 10.0
• CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal Exploited Critical 10.0
• CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control Exploited Critical 10.0
• CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution Exploited Critical 10.0
• CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Exploited Medium 6.8

All Gitlab Gitlab vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-gitlab-2026-6336, GHSA-g9g2-qc64-jgcj, MINI-9jph-pcgv-42gq, MINI-w749-rh4x-qw77.