CVE-2026-6335

Published: Mag 14, 2026 Last Modified: Mag 14, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,4
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user to execute arbitrary code in another user's browser session due to improper sanitization.

79

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

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Integrity Availability
Potential Impacts:
Bypass Protection Mechanism Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
Likelihood of Exploit: High
View CWE Details
https://about.gitlab.com/releases/2026/05/13/patch-release-…
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-relea…
https://gitlab.com/gitlab-org/gitlab/-/work_items/596760
https://gitlab.com/gitlab-org/gitlab/-/work_items/596760
https://hackerone.com/reports/3673647
https://hackerone.com/reports/3673647