CVE-2025-0639 Allocation of Resources Without Limits or Throttling in GitLab

Medium 6.5 Published Updated

Attackers can cause service unavailability in GitLab via issue preview, requiring an upgrade to restore stability.

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-2025-0639?

CVE-2025-0639 is a medium-severity denial of service vulnerability in Gitlab Gitlab, published on 24 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue has been discovered affecting service availability via issue preview in GitLab CE/EE affecting all versions from 16.7 before 17.9.7, 17.10 before 17.10.5, and 17.11 before 17.11.1.

Weakness: CWE-770

Which versions are affected by CVE-2025-0639?

1 open source package ship an affected version, including gitlab. It affects 1 product.

PackageAffectedFixed in
gitlab BitnamiFrom 16.7.017.11.1

Products include Gitlab Gitlab.

How do I fix CVE-2025-0639?

Upgrade gitlab to 17.11.1 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-2025-0639 being exploited?

There is no known exploitation of CVE-2025-0639 in the wild and no public exploit code.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2025-0639, GHSA-9963-8j6c-xr65, UBUNTU-CVE-2025-0639.

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