XSS in GitLab
CVE-2026-2995
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- GitLab — versions 18.10.0, 18.10, 15.4
Weakness classification (CWE)
References
- hackerone.com/reports/3564600 (Permissions Required, technical-description, permissions-required, exploit)
- gitlab.com/gitlab-org/gitlab/-/work_items/591065 (Broken Link)
- about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/ (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-2995?
- CVE-2026-2995 is a high-severity vulnerability in GitLab, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 7.7/10. Published 2026-03-25.
- How severe is CVE-2026-2995?
- High severity. CVSS v3 base score is 7.7 out of 10.