CVE-2020-13342 Denial of service in GitLab
Attackers can exhaust resources by repeatedly triggering confirmation email resends due to missing rate limits, impacting GitLab availability.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-13342?
CVE-2020-13342 is a low-severity denial of service vulnerability in Gitlab Gitlab, published on 7 Oct 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An issue has been discovered in GitLab affecting versions prior to 13.2.10, 13.3.7 and 13.4.2: Lack of Rate Limiting at Re-Sending Confirmation Email
Weakness: CWE-770
Which versions are affected by CVE-2020-13342?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 10.1.0 | 13.2.10, 13.3.7, 13.4.2 |
Products include Gitlab Gitlab.
How do I fix CVE-2020-13342?
Upgrade gitlab to a fixed version for your release line: 13.2.10, 13.3.7 or 13.4.2.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-13342 being exploited?
There is no known exploitation of CVE-2020-13342 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-2020-13342, GHSA-pcf2-p33r-6879, UBUNTU-CVE-2020-13342.