CVE-2026-5952

MEDIUM 4.3

Incorrect Authorization in GitLab

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.11 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to bypass package protection rules and overwrite protected Maven package metadata due to incorrect authorization checks.

CWE	CWE-863
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Jun 25, 2026
Last Updated	Jun 25, 2026

Stay Ahead of the Next One

Get instant alerts for gitlab gitlab

Be the first to know when new medium vulnerabilities affecting gitlab gitlab are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

GitLab / GitLab

17.11 < 18.11.6 19.0 < 19.0.3 19.1 < 19.1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/596134 hackerone.com: https://hackerone.com/reports/3632428 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/

Credits

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