CVE-2026-5952 Details
Description
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.
A vulnerability exists in GitLab Community Edition (CE) and Enterprise Edition (EE) versions 17.11 prior to 18.11.6, 19.0 prior to 19.0.3, and 19.1 prior to 19.1.1. Under certain conditions, this vulnerability could have allowed an authenticated user with developer-role permissions to bypass package protection rules and overwrite protected Maven package metadata. This issue stems from incorrect authorization checks that failed to properly enforce package protection policies, enabling unauthorized modifications to metadata on safeguarded Maven packages.
Users are advised to upgrade to GitLab versions 19.1.1, 19.0.3, or 18.11.6. Instructions for updating GitLab can be found on the GitLab Update page. This patch includes database migrations that may impact the upgrade process, causing downtime for single-node instances.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 25, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/ | [email protected] | Release NotesVendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/work_items/596134 | [email protected] | Broken Link |
| https://hackerone.com/reports/3632428 | [email protected] | Permissions Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| gitlab gitlab | >= 17.11.0, < 18.11.6 >= 19.0.0, < 19.0.3 19.1.0 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 26, 2026 | Initial Analysis | [email protected] |
| Jun 25, 2026 | CVE Modified | CISA-ADP |
| Jun 25, 2026 | New CVE Received | [email protected] |