GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
GitLab GitLab unaffected
Version Status Constraints
16.4 affected < 18.11.6
19.0 affected < 19.0.3
19.1 affected < 19.1.1

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

Vendors Products
Gitlab Subscribe
Gitlab Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to versions 18.11.6, 19.0.3, 19.1.1 or above.

Workaround

No workaround given by the vendor.

References
Link Providers
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/ cve-icon
https://gitlab.com/gitlab-org/gitlab/-/work_items/601634 cve-icon
https://hackerone.com/reports/3734800 cve-icon
History

Thu, 25 Jun 2026 05:15:00 +0000

Type Values Removed Values Added
Description GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input.
Title Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
First Time appeared Gitlab
Gitlab gitlab
Weaknesses CWE-79
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Vendors & Products Gitlab
Gitlab gitlab
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-06-25T05:03:58.451Z

Reserved: 2026-05-29T12:04:39.988Z

Link: CVE-2026-10086

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-25T06:30:16Z

Weaknesses