CVE-2026-2995

HIGH

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab

Title source: cna

Description

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.

References (3)

https://gitlab.com/gitlab-org/gitlab/-/work_items/591065

https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/

[Exploit] https://hackerone.com/reports/3564600

Scores

CVSS v3 7.7

EPSS 0.0007

EPSS Percentile 22.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-79 CWE-80

Status published

Products (5)

gitlab/gitlab 18.10.0

GitLab/GitLab 15.4 - 18.8.7

gitlab/gitlab 15.4.0 - 18.8.7

GitLab/GitLab 18.10 - 18.10.1

GitLab/GitLab 18.9 - 18.9.3

Published Mar 25, 2026

Tracked Since Mar 25, 2026