Vulnerability · Published Feb 11, 2026 · Assigned by GitLab
CVE-2026-0595Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
High 7.3
In plain English
A high-severity cross-site scripting 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 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.3%top 82.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.9 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to add unauthorized email addresses to victim accounts through HTML injection in test case titles.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
References
- GitLab Issue #584975 issue-tracking, permissions-required
- HackerOne Bug Bounty Report #3486862 technical-description, exploit, permissions-required
- https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/