---
id: CVE-2026-4868
title: >-
  GitLab has remediated an issue in GitLab EE affecting all versions from 18.8
  before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under
  certain conditions, could have allowed an authenticated user to cause specific
  Duo AI w…
summary: >-
  GitLab has remediated an issue in GitLab EE affecting all versions from 18.8
  before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under
  certain conditions, could have allowed an authenticated user to cause specific
  Duo AI w…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N'
cwe:
  - CWE-639
vendor: gitlab
product: gitlab
affected:
  - 'gitlab >= 18.8.0, < 18.10.7'
  - 'gitlab >= 18.11.0, < 18.11.4'
  - gitlab = 19.0.0
patched:
  - gitlab 18.11.4
published: '2026-05-27'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4868'
references:
  - url: >-
      https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/
    label: cve@gitlab.com
  - url: 'https://gitlab.com/gitlab-org/gitlab/-/work_items/594809'
    label: cve@gitlab.com
  - url: 'https://hackerone.com/reports/3619872'
    label: cve@gitlab.com
tags:
  - nvd
epss: 0.00455
epssPercentile: 0.37896
ingestedAt: '2026-10-14T20:53:12.334Z'
---

## Overview

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under certain conditions, could have allowed an authenticated user to cause specific Duo AI workflows to run under another user's identity due to improper user identity resolution when triggering Duo AI workflow runners.

## Affected

- `gitlab >= 18.8.0, < 18.10.7`
- `gitlab >= 18.11.0, < 18.11.4`
- `gitlab = 19.0.0`

## Remediation

Upgrade past the affected range:

- `gitlab 18.11.4`