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Findings

CVE-2026-1090

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 au…

Published Mar 11, 2026 · updated Jun 17, 2026 · gitlab gitlab

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 feature flag was enabled, to inject JavaScript in a browser due to improper sanitization of placeholder content in markdown processing.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 11, 2026 · GitLab Security Releases

    Detected

    On March 11, 2026, we released versions 18.9.2, 18.8.6, 18.7.6 for GitLab Community Edition (CE) and Enterprise Edition (EE). These versions contain important bug and security fixes, and we strongly recommend that all self-managed GitLab installations be upgraded to one of these versions immediately. GitLab.com is already running the patched version. GitLab Dedicated customers do not need to take

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 feature flag was enabled, to inject JavaScript in a browser due to improper sanitization of placeholder content in markdown processing.

Affected

  • cpe gitlab/gitlabversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-1090

    Official CVE identifier

    cve.org
  • GitLab Security ReleasesVendor advisoryCVE-2026-1090

    On March 11, 2026, we released versions 18.9.2, 18.8.6, 18.7.6 for GitLab Community Edition (CE) and Enterprise Edition (EE). These versions contain important bug and security fixes, and we strongly recommend that all self-managed GitLab installations be upgraded to one of these

    docs.gitlab.com
  • NIST NVDVulnerability recordCVE-2026-1090

    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 feature flag was enabled, to inject JavaScript in a browser du

    nvd.nist.gov

References