GitLab Community Edition/Enterprise Edition up to 18.9.0 API Endpoint allocation of resources

Summaryinfo

A vulnerability marked as problematic has been reported in GitLab Community Edition and Enterprise Edition up to 18.9.0. This affects an unknown function of the component API Endpoint. Performing a manipulation results in allocation of resources. This vulnerability was named CVE-2026-1725. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 18.9.0. It has been classified as problematic. This affects an unknown code of the component API Endpoint. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

GitLab has remediated an issue in GitLab CE/EE affecting versions from 18.9 before 18.9.1 that could have under certain conditions, allowed an unauthenticated user to cause denial of service by sending specially crafted requests to a CI jobs API endpoint.

The weakness was presented by Vinax as 588338. It is possible to read the advisory at gitlab.com. This vulnerability is uniquely identified as CVE-2026-1725 since 01/30/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 300170 (GitLab 18.9 < 18.9.1 (CVE-2026-1725)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 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 (300170). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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
• 18.8
• 18.9.0

License

• open-source

Website

• Vendor: https://gitlab.com/

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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