Unauthorized Access Vulnerability in GitLab CE/EE
CVE-2026-16275

5.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
13 October 2026

What is CVE-2026-16275?

A critical security flaw in GitLab CE/EE could permit unauthenticated users to read confidential notes on public projects. This arises from improper authorization checks implemented in various releases. Users are strongly advised to upgrade to the patched versions of GitLab CE/EE to eliminate the risk of unauthorized data exposure.

Affected Version(s)

GitLab 17.4 < 19.2.8

GitLab 19.3 < 19.3.5

GitLab 19.4 < 19.4.2

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/606490
https://hackerone.com/reports/3815259
technical-descriptionexploitpermissions-required
https://docs.gitlab.com/releases/patches/patch-release-gi...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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