Cross-site Scripting (XSS) Affecting gitlab package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.09% (25th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-GITLAB-15473935
  • published12 Mar 2026
  • disclosed11 Mar 2026

Introduced: 11 Mar 2026

CVE-2026-1090  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable gitlab.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gitlab package and not the gitlab package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.6 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user, when the markdown_placeholders feature flag was enabled, to inject JavaScript in a browser due to improper sanitization of placeholder content in markdown processing.

CVSS Base Scores

version 3.1