CVE-2023-4522 Improper Validation of Specified Type of Input in GitLab
Attackers can cause 500 errors and service disruption by committing directories with LF characters, affecting GitLab availability.
- 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-2023-4522?
CVE-2023-4522 is a medium-severity denial of service vulnerability in Gitlab Gitlab, published on 30 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue has been discovered in GitLab affecting all versions before 16.2.0. Committing directories containing LF character results in 500 errors when viewing the commit.
Weakness: CWE-1287
Which versions are affected by CVE-2023-4522?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | All versions | 16.2.0 |
Products include Gitlab Gitlab.
How do I fix CVE-2023-4522?
Upgrade gitlab to 16.2.0 or later.
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-2023-4522 being exploited?
There is no known exploitation of CVE-2023-4522 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-2023-4522, GHSA-3cw2-66px-r367, UBUNTU-CVE-2023-4522.