CVE-2026-0595

HIGH

GitLab 13.9-18.6.5, 18.7-18.7.3, 18.8-18.8.3 - Authenticated HTML Injection in Test Case Titles

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Broken Link, Issue Tracking issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/584975
Permissions Required technical-description exploit permissions-required
https://hackerone.com/reports/3486862

Scores

CVSS v3 7.3
EPSS 0.0008
EPSS Percentile 23.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-79
Status published
Products (1)
gitlab/gitlab 13.9.0 - 18.6.6 (2 CPE variants)
Published Feb 11, 2026
Tracked Since Feb 18, 2026