CVE-2026-5952
Received Received - Intake
Authenticated Maven Package Metadata Overwrite in GitLab CE/EE

Publication date: 2026-06-25

Last updated on: 2026-06-25

Assigner: GitLab Inc.

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.
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Meta Information
Published
2026-06-25
Last Modified
2026-06-25
Generated
2026-06-25
AI Q&A
2026-06-25
EPSS Evaluated
N/A
NVD
CVE-2026-5952
EUVD
EUVD-2026-39173
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
gitlab gitlab_ce From 17.11 (inc) to 18.11.6 (exc)
gitlab gitlab_ee From 17.11 (inc) to 18.11.6 (exc)
gitlab gitlab_ce From 19.0 (inc) to 19.0.3 (exc)
gitlab gitlab_ee From 19.0 (inc) to 19.0.3 (exc)
gitlab gitlab_ce From 19.1 (inc) to 19.1.1 (exc)
gitlab gitlab_ee From 19.1 (inc) to 19.1.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
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Impact Analysis

The vulnerability could allow a developer-role user to overwrite protected Maven package metadata, potentially leading to unauthorized changes in package data. This could affect the integrity of software packages and may introduce risks related to software supply chain security.

Executive Summary

This vulnerability in GitLab CE/EE affects versions from 17.11 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1. It allows an authenticated user with developer-role permissions to bypass package protection rules and overwrite protected Maven package metadata due to incorrect authorization checks.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. Specifically, update to GitLab CE/EE version 18.11.6 or later, 19.0.3 or later, or 19.1.1 or later, depending on your current version.

This will ensure that the incorrect authorization checks allowing developer-role users to bypass package protection rules and overwrite protected Maven package metadata are resolved.

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