Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
CVE-2026-10087

8.7HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
11 June 2026

What is CVE-2026-10087?

GitLab has remediated an issue in GitLab EE affecting all versions from 17.1 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code on behalf of a targeted user due to improper input sanitization in the Analytics Dashboard.

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
.