CVE-2020-12277 Missing authorization in n/a
Attackers can mirror repositories in GitLab even when the feature is disabled, bypassing intended access controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-12277?
CVE-2020-12277 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 29 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
GitLab 10.8 through 12.9 has a vulnerability that allows someone to mirror a repository even if the feature is not activated.
Weakness: CWE-276
Which versions are affected by CVE-2020-12277?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 10.8.0 | 12.7.8, 12.8.8, 12.9.1 |
Products include Gitlab Gitlab.
How do I fix CVE-2020-12277?
Upgrade gitlab to a fixed version for your release line: 12.7.8, 12.8.8 or 12.9.1.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-12277 being exploited?
There is no known exploitation of CVE-2020-12277 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-2020-12277, GHSA-7vrg-mmxg-pgfj, UBUNTU-CVE-2020-12277.