🔐 CVE Alert

CVE-2023-3964

MEDIUM 4.3

Incorrect Authorization in GitLab

CVSS Score
4.3
EPSS Score
0.1%
EPSS Percentile
26th

An issue has been discovered in GitLab affecting all versions starting from 13.2 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for users to access composer packages on public projects that have package registry disabled in the project settings.

CWE CWE-863
Vendor gitlab
Product gitlab
Ecosystems
Industries
Technology
Published Dec 1, 2023
Last Updated May 6, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Affected Versions

GitLab / GitLab
13.2 < 16.4.3 16.5 < 16.5.3 16.6 < 16.6.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/issues/419857 hackerone.com: https://hackerone.com/reports/2037316

Credits

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