GitLab Enterprise Edition up to 18.8.6/18.9.2/18.10.0 Email Address cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in GitLab Enterprise Edition up to 18.8.6/18.9.2/18.10.0. This affects an unknown part of the component Email Address Handler. Executing a manipulation can lead to cross site scripting. This vulnerability is registered as CVE-2026-2995. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab Enterprise Edition up to 18.8.6/18.9.2/18.10.0. It has been declared as problematic. This vulnerability affects an unknown functionality of the component Email Address Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. As an impact it is known to affect integrity. CVE summarizes:

GitLab has remediated an issue in GitLab EE affecting all versions from 15.4 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to add email addresses to targeted user accounts due to improper sanitization of HTML content.

The weakness was published by A_M_A_M. The advisory is available at hackerone.com. This vulnerability was named CVE-2026-2995 since 02/23/2026. The exploitation appears to be difficult. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 18.8.7, 18.9.3 or 18.10.1 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Bug Tracking Software

Vendor

• GitLab

Name

• Enterprise Edition

Version

• 18.0
• 18.1
• 18.2
• 18.3
• 18.4
• 18.5
• 18.6
• 18.7
• 18.8
• 18.8.0
• 18.8.1
• 18.8.2
• 18.8.3
• 18.8.4
• 18.8.5
• 18.8.6
• 18.9
• 18.9.0
• 18.9.1
• 18.9.2
• 18.10.0

License

• commercial

Website

• Vendor: https://gitlab.com/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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