Information disclosure in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-16553

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Main Vulnerability Database Vulnerabilities #VU140479

Information disclosure in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-16553

Published: July 29, 2026 / Updated: July 30, 2026


Vulnerability identifier: #VU140479
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-16553
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available
Affected software:
GitLab Enterprise Edition
Gitlab Community Edition

Detailed vulnerability description

The vulnerability allows a remote user to disclose sensitive information to an unintended host.

The vulnerability exists due to improper handling of upstream requests in virtual registries when processing upstream requests. A remote user can trigger upstream requests to disclose sensitive information to an unintended host.


How to mitigate CVE-2026-16553

Install security update from vendor's website.

Sources