Input Sanitization Flaw in GitLab EE Versions and Developer Role Permissions
CVE-2026-10087

8.7HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
11 June 2026

What is CVE-2026-10087?

GitLab has addressed a security vulnerability in GitLab EE that affects various versions. This issue arises from improper input sanitization within the Analytics Dashboard, which could potentially enable authenticated users with developer-role permissions to execute arbitrary client-side code on behalf of other targeted users. The flaw highlights the importance of robust input validation to protect against unauthorized actions within the software.

Affected Version(s)

GitLab 17.1 < 18.10.8

GitLab 18.11 < 18.11.5

GitLab 19.0 < 19.0.2

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/601633
https://hackerone.com/reports/3759090
technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/06/10/patch-releas...

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [yvvdwf](https://hackerone.com/yvvdwf) for reporting this vulnerability through our HackerOne bug bounty program
.