CVE-2021-39897 Missing authorization in GitLab
GitLab users with inherited subgroup access retain project permissions after subgroup transfer, allowing unauthorized data access and modification.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-39897?
CVE-2021-39897 is a low-severity missing authorization vulnerability in Gitlab Gitlab, published on 4 Nov 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper access control in GitLab CE/EE version 10.5 and above allowed subgroup members with inherited access to a project from a parent group to still have access even after the subgroup is transferred
Weakness: CWE-281
Which versions are affected by CVE-2021-39897?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 12.9.0 | 12.9.8, 12.10.7, 13.0.1 |
Products include Gitlab Gitlab.
How do I fix CVE-2021-39897?
Upgrade gitlab to a fixed version for your release line: 12.9.8, 12.10.7 or 13.0.1.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-39897 being exploited?
There is no known exploitation of CVE-2021-39897 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-2021-39897, GHSA-mxm2-2266-373h, UBUNTU-CVE-2021-39897.