---
id: CVE-2025-12029
title: >-
  GitLab has remediated an issue in GitLab CE/EE affecting all versions from
  15.11 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could
  have, under certain circumstances, allowed an unauthenticated user to perform
  unauthori…
summary: >-
  GitLab has remediated an issue in GitLab CE/EE affecting all versions from
  15.11 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could
  have, under certain circumstances, allowed an unauthenticated user to perform
  unauthori…
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-79
vendor: gitlab
product: gitlab
affected:
  - 'gitlab >= 15.11.0, < 18.4.6'
  - 'gitlab >= 18.5.0, < 18.5.4'
  - 'gitlab >= 18.6.0, < 18.6.2'
patched:
  - gitlab 18.6.2
published: '2025-12-11'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T21:10:00.183'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-12029'
references:
  - url: >-
      https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/
    label: cve@gitlab.com
  - url: 'https://gitlab.com/gitlab-org/gitlab/-/issues/577975'
    label: cve@gitlab.com
  - url: 'https://hackerone.com/reports/3317485'
    label: cve@gitlab.com
tags:
  - nvd
epss: 0.00527
epssPercentile: 0.43269
ingestedAt: '2026-10-14T21:57:04.797Z'
---

## Overview

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have, under certain circumstances, allowed an unauthenticated user to perform unauthorized actions on behalf of another user by injecting malicious external scripts into the Swagger UI."

## Affected

- `gitlab >= 15.11.0, < 18.4.6`
- `gitlab >= 18.5.0, < 18.5.4`
- `gitlab >= 18.6.0, < 18.6.2`

## Remediation

Upgrade past the affected range:

- `gitlab 18.6.2`