CVE-2026-13319
Received Received - Intake

Authenticated Information Disclosure in GitLab CE/EE

Publication date: 2026-10-22

Last updated on: 2026-10-22

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, could have allowed an authenticated to read milestone metadata, including titles, descriptions, and full project paths, from arbitrary private projects across the instance without any project membership, due to missing authorization checks on a user-supplied project filter parameter in the group milestones API.

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Meta Information

Published
2026-10-22
Last Modified
2026-10-22
Generated
2026-10-22
AI Q&A
2026-10-22
EPSS Evaluated
N/A
NVD
CVE-2026-13319

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
GitLab GitLab 15.10
GitLab GitLab 19.4
GitLab GitLab 19.5

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

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Executive Summary

This vulnerability in GitLab CE/EE allowed an authenticated user to read milestone metadata such as titles, descriptions, and project paths from private projects they were not a member of. The issue occurred due to missing authorization checks on a user-supplied project filter parameter in the group milestones API.

Impact Analysis

An attacker with access could view sensitive milestone details from private projects, potentially exposing confidential project information or metadata without proper authorization.

Mitigation Strategies

Upgrade GitLab to a patched version (19.3.6, 19.4.3, or 19.5.1 or later) to address the missing authorization checks in the group milestones API.

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