CVE-2025-4225 Allocation of Resources Without Limits or Throttling in GitLab
An unauthenticated attacker can cause a denial-of-service condition for all users by sending specially crafted GraphQL requests to GitLab.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-4225?
CVE-2025-4225 is a medium-severity denial of service vulnerability in Gitlab Gitlab, published on 27 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue has been discovered in GitLab CE/EE affecting all versions from 14.1 before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that that under certain conditions could have allowed an unauthenticated attacker to cause a denial-of-service condition affecting all users by sending specially crafted GraphQL requests.
Weakness: CWE-770
Which versions are affected by CVE-2025-4225?
1 open source package ship an affected version, including gitlab. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gitlab Bitnami | From 14.1.0 | 18.1.5, 18.2.5, 18.3.1 |
Products include Gitlab Gitlab.
How do I fix CVE-2025-4225?
Upgrade gitlab to a fixed version for your release line: 18.1.5, 18.2.5 or 18.3.1.
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-2025-4225 being exploited?
There is no known exploitation of CVE-2025-4225 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-2025-4225, GHSA-rq6q-w27x-f9x2, MINI-3h8r-qrx3-x52g, MINI-475j-x3cv-g4x5, MINI-cj8v-p3j8-w5fx, MINI-cm25-m2p9-hh2c and 4 more.