GitLab Community Edition/Enterprise Edition up to 18.4.5/18.5.3/18.6.1 API allocation of resources

Summaryinfo

A vulnerability described as critical has been identified in GitLab Community Edition and Enterprise Edition up to 18.4.5/18.5.3/18.6.1. This affects an unknown function of the component API Handler. Such manipulation leads to allocation of resources. This vulnerability is documented as CVE-2025-14157. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 18.4.5/18.5.3/18.6.1. It has been rated as critical. Affected by this issue is an unknown code block of the component API Handler. 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 6.3 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to cause a Denial of Service condition by sending crafted API calls with large content parameters.

The advisory is shared for download at gitlab.com. This vulnerability is handled as CVE-2025-14157 since 12/05/2025. 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 294839 (Linux Distros Unpatched Vulnerability : CVE-2025-14157), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.4.6, 18.5.4 or 18.6.2 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com.

The vulnerability is also documented in the databases at Tenable (294839), EUVD (EUVD-2025-202661) and CERT Bund (WID-SEC-2025-2822). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Open Source GitLab

Productinfo

Type

• Bug Tracking Software

Vendor

• GitLab

Name

• Community Edition
• Enterprise Edition

Version

• 18.4.0
• 18.4.1
• 18.4.2
• 18.4.3
• 18.4.4
• 18.4.5
• 18.5.0
• 18.5.1
• 18.5.2
• 18.5.3
• 18.6.0
• 18.6.1

License

• open-source

Website

• Vendor: https://gitlab.com/

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CPE 2.2info

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Entryinfo

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

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