Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-92883

CVE-2026-92883HIGH

GitLab GitLab — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   R  C  H  H  N    8.7   .0027   17.8     —

AFFECTED
  Product  Versions  Fixed
  GitLab   19.1 –    —

TIMELINE
  Sep 17  Reserved by GitLab
  Oct 13  Published (CNA: GitLab)
  Oct 14  EXPLOIT PUBLISHED — CVE-2026-92883 (GitLab). Public exploit reference added.

CWE-79 · CNA: GitLab · CVSS v3.1 · 3 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 17, 2026	Reserved	Reserved by GitLab
October 13, 2026	Published	Published (CNA: GitLab)
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-92883 (GitLab). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
GitLab	GitLab	—	19.1	—

Weaknesses

CWE-79

References (3)

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

Authoritative record: CVE-2026-92883 at cve.org

Vendors: gitlab

Weaknesses: CWE-79

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-92883 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.