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

Summaryinfo

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. The impacted element is an unknown function. The manipulation leads to allocation of resources. This vulnerability is referenced as CVE-2026-2845. Remote exploitation of the attack is possible. No exploit is available. It is advisable to 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. This issue affects an unknown functionality. 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. The summary by CVE is:

An issue has been discovered in GitLab CE/EE affecting all versions from 11.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an authenticated user to cause denial of service by exploiting a Bitbucket Server import endpoint via repeatedly sending large responses.

It is possible to read the advisory at gitlab.com. The identification of this vulnerability is CVE-2026-2845 since 02/20/2026. The exploitation is known to be easy. The attack may be initiated remotely. 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 300128 (Linux Distros Unpatched Vulnerability : CVE-2026-2845), 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 (300128). 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
• 18.7.0
• 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/

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

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