GitLab Community Edition/Enterprise Edition up to 18.7.4/18.8.4/18.9.0 CI allocation of resources

Summaryinfo

A vulnerability, which was classified as problematic, was found in GitLab Community Edition and Enterprise Edition up to 18.7.4/18.8.4/18.9.0. This affects an unknown part of the component CI. Such manipulation leads to allocation of resources. This vulnerability is listed as CVE-2025-3525. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GitLab Community Edition and Enterprise Edition up to 18.7.4/18.8.4/18.9.0. Affected by this issue is some unknown functionality of the component CI. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. CVE summarizes:

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.0 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have, under certain circumstances, allowed an authenticated user with certain access to cause Denial of Service by creating specially crafted CI triggers via the API.

The weakness was presented by Pwnie as 535662. The advisory is shared for download at gitlab.com. This vulnerability is handled as CVE-2025-3525 since 04/11/2025. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 300112 (Linux Distros Unpatched Vulnerability : CVE-2025-3525), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.7.5, 18.8.5 or 18.9.1 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com.

The vulnerability is also documented in the vulnerability database at Tenable (300112). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Bug Tracking Software

Vendor

• GitLab

Name

• Community Edition
• Enterprise Edition

Version

• 18.0
• 18.1
• 18.2
• 18.3
• 18.4
• 18.5
• 18.6
• 18.7
• 18.7.0
• 18.7.1
• 18.7.2
• 18.7.3
• 18.7.4
• 18.8
• 18.8.0
• 18.8.1
• 18.8.2
• 18.8.3
• 18.8.4
• 18.9.0

License

• open-source

Website

• Vendor: https://gitlab.com/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion