CVE-2026-1090

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

VendorProductVersions
GitLabGitLab>= 10.6, < 18.7.6; >= 18.8, < 18.8.6; >= 18.9, < 18.9.2

References

Timeline

Published
Mar 11, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-1090: Medium severity, CVSS 5.4 | Vulnix