CVE-2026-0595: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
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.
Other sources
GitLab has remediated an issue that, under certain conditions, could have allowed an authenticated user to add unauthorized email addresses to user accounts through HTML injection in test case titles.
— GitLab
Affected Software
Remediation
Information
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-0595?
CVE-2026-0595 is classified as a medium severity vulnerability within GitLab.
How do I fix CVE-2026-0595?
To remediate CVE-2026-0595, upgrade your GitLab installation to version 18.6.6 or later, or the latest version for versions 18.7 and 18.8.
What versions of GitLab are affected by CVE-2026-0595?
CVE-2026-0595 affects GitLab versions from 13.9 through 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4.
Who is impacted by CVE-2026-0595?
Authenticated users of GitLab CE/EE versions prior to the mentioned patches may be impacted by CVE-2026-0595.
What type of vulnerability is CVE-2026-0595?
CVE-2026-0595 is an HTML Injection vulnerability that can allow unauthorized email additions under certain conditions.