Vulnerability · Published Mar 25, 2026 · Assigned by GitLab
CVE-2026-2995Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
High 7.7
In plain English
A high-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.2%top 91.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
References
- HackerOne Bug Bounty Report #3564600 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/591065
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/