CVE-2026-0595

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

State: Published
Severity: 7.3 High
Published: Feb 11, 2026
Updated: Feb 26, 2026
Reserved: Jan 5, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N	GitLab

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
GitLabGitLab	13.9 to before 18.6.6Affected 18.7 to before 18.7.4Affected 18.8 to before 18.8.4Affected

References

GitLab Issue #584975issue-trackingpermissions-required
HackerOne Bug Bounty Report #3486862technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/

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