Unauthenticated Read of Private Notes in GitLab CE/EE (17.4-19.4)
CVE-2026-16275 Published on October 13, 2026
Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.4 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to read confidential notes on public projects due to incorrect authorization checks.
Vulnerability Analysis
CVE-2026-16275 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-16275 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-16275
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Affected Versions
GitLab:- Version 17.4 and below 19.2.8 is affected.
- Version 19.3 and below 19.3.5 is affected.
- Version 19.4 and below 19.4.2 is affected.