Denial of Service Vulnerability in GitLab CE/EE by GitLab
CVE-2026-1500

6.5MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
11 June 2026

What is CVE-2026-1500?

GitLab has addressed a vulnerability in its Community and Enterprise Editions that could potentially allow an authenticated user to trigger a denial of service. This issue arises when processing specially crafted file uploads, leading to uncontrolled resource consumption. The vulnerability affects various versions of GitLab CE/EE, specifically prior to updates in 18.10.8, 18.11.5, and 19.0.2, thereby necessitating timely patches to mitigate potential impacts on system availability.

Affected Version(s)

GitLab 17.10 < 18.10.8

GitLab 18.11 < 18.11.5

GitLab 19.0 < 19.0.2

References

https://hackerone.com/reports/3517331
technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/587825
https://about.gitlab.com/releases/2026/06/10/patch-releas...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [a92847865](https://hackerone.com/a92847865) for reporting this vulnerability through our HackerOne bug bounty program
.