CVE-2020-13312 Auth bypass in GitLab
Attackers can brute-force GitLab OAuth endpoints to potentially take over user accounts due to insufficient rate limiting.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-13312?
CVE-2020-13312 is a medium-severity authentication bypass vulnerability in Gitlab Gitlab, published on 14 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab OAuth endpoint was vulnerable to brute-force attacks through a specific parameter.
Weakness: CWE-307
Which versions are affected by CVE-2020-13312?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 7.7.0 | 13.1.10, 13.2.8, 13.3.4 |
Products include Gitlab Gitlab.
How do I fix CVE-2020-13312?
Upgrade gitlab to a fixed version for your release line: 13.1.10, 13.2.8 or 13.3.4.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2020-13312 being exploited?
There is no known exploitation of CVE-2020-13312 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-2020-13312, GHSA-c5px-g3pm-787c, UBUNTU-CVE-2020-13312.