CVE-2026-92883

8.7High

Published 13 Oct 2026 · NVD status: Analyzed

8.7High

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required
Impact: High impact on confidentiality, integrity
Weakness: CWE-79

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CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

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NVD description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browser sessions via a specially crafted repository, due to improper sanitization of HTML attributes in syntax-highlighted output.

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/629523Issue Tracking
https://hackerone.com/reports/3936831Permissions Required

Source: nvd.nist.gov/vuln/detail/CVE-2026-92883