CVE-2021-22181 Denial of service in GitLab
An attacker can create recursive pipeline relationships in GitLab to exhaust resources, causing a denial of service.
- 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-2021-22181?
CVE-2021-22181 is a high-severity denial of service vulnerability in Gitlab Gitlab, published on 11 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A denial of service vulnerability in GitLab CE/EE affecting all versions since 11.8 allows an attacker to create a recursive pipeline relationship and exhaust resources.
Weakness: CWE-400
Which versions are affected by CVE-2021-22181?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 11.8.0 | 13.10.5, 13.11.5, 13.12.2 |
Products include Gitlab Gitlab.
How do I fix CVE-2021-22181?
Upgrade gitlab to a fixed version for your release line: 13.10.5, 13.11.5 or 13.12.2.
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-2021-22181 being exploited?
There is no known exploitation of CVE-2021-22181 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-2021-22181, GHSA-jhg6-6fpm-5p2r, UBUNTU-CVE-2021-22181.