CVE-2021-39941 Information disclosure in GitLab
Non-project members can view the default branch name of restricted projects, exposing internal repository structure details.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-39941?
CVE-2021-39941 is a low-severity vulnerability in Gitlab Gitlab, published on 13 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An information disclosure vulnerability in GitLab CE/EE versions 12.0 to 14.3.6, 14.4 to 14.4.4, and 14.5 to 14.5.2 allowed non-project members to see the default branch name for projects that restrict access to the repository to project members
Weakness: CWE-200
Which versions are affected by CVE-2021-39941?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 12.0.0 | 14.3.6, 14.4.4, 14.5.2 |
Products include Gitlab Gitlab.
How do I fix CVE-2021-39941?
Upgrade gitlab to a fixed version for your release line: 14.3.6, 14.4.4 or 14.5.2.
Is CVE-2021-39941 being exploited?
There is no known exploitation of CVE-2021-39941 in the wild and no public exploit code.
Other vulnerabilities in Gitlab Gitlab
- CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound
- CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal
- CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control
- CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution
- CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF)
Sources
Also known as BIT-gitlab-2021-39941, GHSA-9xv2-8g99-6925, UBUNTU-CVE-2021-39941.