CVE-2026-14552
Received Received - Intake

GitLab CE/EE Improper Authorization Leading to Information Disclosure

Vulnerability report for CVE-2026-14552, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: GitLab Inc.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.0 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user with Guest access to read confidential epic content meant to be restricted by external authorization, due to incorrect authorization checks.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
GitLab GitLab 17.0
GitLab GitLab 19.3
GitLab GitLab 19.4

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.

Attack-Flow Graph

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Executive Summary

This vulnerability in GitLab CE/EE allowed an authenticated user with Guest access to read confidential epic content that should have been restricted by external authorization. The issue was due to incorrect authorization checks in versions before 19.2.8, 19.3.5, and 19.4.2.

Detection Guidance

This vulnerability involves incorrect authorization checks in GitLab allowing Guest users to read confidential epic content. To detect it, check GitLab logs for unauthorized access attempts to restricted epics, particularly by Guest users. Review authorization logs and epic access permissions in the admin panel. No specific commands are provided in the CVE details.

Impact Analysis

If exploited, this vulnerability could allow unauthorized users to access sensitive information meant to be restricted, potentially leading to data leaks or compliance violations.

Compliance Impact

This vulnerability could lead to unauthorized access to confidential data, which may violate GDPR, HIPAA, or other regulations requiring strict data access controls.

Mitigation Strategies

Upgrade GitLab to a patched version: 19.2.8, 19.3.5, or 19.4.2 or later. Verify the upgrade was successful and check for any unauthorized access to epic content.

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