CVE-2023-3917 Improper Validation of Specified Type of Input in GitLab
An attacker can cause GitLab pipelines to fail, resulting in a denial of service for CI/CD operations.
- 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-2023-3917?
CVE-2023-3917 is a medium-severity denial of service vulnerability in Gitlab Gitlab, published on 29 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Denial of Service in pipelines affecting all versions of Gitlab EE and CE prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1 allows attacker to cause pipelines to fail.
Weakness: CWE-1287
Which versions are affected by CVE-2023-3917?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | All versions | 16.2.8, 16.3.5, 16.4.1 |
Products include Gitlab Gitlab.
How do I fix CVE-2023-3917?
Upgrade gitlab to a fixed version for your release line: 16.2.8, 16.3.5 or 16.4.1.
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-2023-3917 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3917 exists.
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-2023-3917, GHSA-7jqp-vcg7-7x84, UBUNTU-CVE-2023-3917.