CVE-2026-8937
Received Received - Intake

Authenticated Information Disclosure in GitLab CE/EE

Publication date: 2026-09-29

Last updated on: 2026-09-29

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to read private child issue contents, including titles and descriptions, from projects they had no access to, due to missing authorization checks on linked work items within visible epics.

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Meta Information

Published
2026-09-29
Last Modified
2026-09-29
Generated
2026-09-29
AI Q&A
2026-09-29
EPSS Evaluated
N/A
NVD
CVE-2026-8937
EUVD
EUVD-2026-88689

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
gitlab gitlab_ce From 19.0 (inc) to 19.2.7 (exc)
gitlab gitlab_ce From 19.3 (inc) to 19.3.3 (exc)
gitlab gitlab_ce From 19.4 (inc) to 19.4.1 (exc)
gitlab gitlab_ee From 19.0 (inc) to 19.2.7 (exc)
gitlab gitlab_ee From 19.3 (inc) to 19.3.3 (exc)
gitlab gitlab_ee From 19.4 (inc) to 19.4.1 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability in GitLab CE/EE allows an authenticated user to read private child issue contents, including titles and descriptions, from projects they have no access to. This happens due to missing authorization checks on linked work items within visible epics.

Detection Guidance

This vulnerability involves missing authorization checks in GitLab CE/EE versions before 19.2.7, 19.3.3, and 19.4.1. To detect it, check your GitLab version using the command: gitlab-rake gitlab:env:info. If your version is below the patched releases, the system is vulnerable.

Impact Analysis

An attacker with access could view sensitive information in private issues they should not have access to, potentially leading to data leaks or unauthorized knowledge of confidential project details.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA, potentially resulting in legal penalties or compliance breaches.

Mitigation Strategies

Upgrade GitLab CE/EE to version 19.2.7, 19.3.3, or 19.4.1 or later to address the missing authorization checks on linked work items.

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