CVE-2021-39884 Information disclosure in GitLab
Low-privileged project members can view names of private groups with project access, exposing sensitive organizational structure information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-39884?
CVE-2021-39884 is a medium-severity vulnerability in Gitlab Gitlab, published on 5 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In all versions of GitLab EE since version 8.13, an endpoint discloses names of private groups that have access to a project to low privileged users that are part of that project.
Which versions are affected by CVE-2021-39884?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 8.13.0 | 14.1.7, 14.2.5, 14.3.1 |
Products include Gitlab Gitlab.
How do I fix CVE-2021-39884?
Upgrade gitlab to a fixed version for your release line: 14.1.7, 14.2.5 or 14.3.1.
Is CVE-2021-39884 being exploited?
There is no known exploitation of CVE-2021-39884 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-2021-39884, GHSA-mq9g-jw9v-3pcf, UBUNTU-CVE-2021-39884.