CVE-2026-6269
Analyzed Analyzed - Analysis Complete

Authenticated Developer Access Bypass in GitLab CE/EE

Publication date: 2026-06-11

Last updated on: 2026-06-15

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to modify hidden merge requests due to incorrect authorization enforcements.

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Meta Information

Published
2026-06-11
Last Modified
2026-06-15
Generated
2026-07-01
AI Q&A
2026-06-11
EPSS Evaluated
2026-06-30
NVD
CVE-2026-6269
EUVD
EUVD-2026-36231

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
gitlab gitlab From 18.11.0 (inc) to 18.11.5 (exc)
gitlab gitlab From 19.0.0 (inc) to 19.0.2 (exc)
gitlab gitlab From 18.11.0 (inc) to 18.11.5 (exc)
gitlab gitlab From 19.0.0 (inc) to 19.0.2 (exc)
gitlab gitlab From 15.10.0 (inc) to 18.10.8 (exc)
gitlab gitlab From 15.10.0 (inc) to 18.10.8 (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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Executive Summary

This vulnerability in GitLab CE/EE affects versions from 15.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2. It allows an authenticated user with developer-role permissions, under certain conditions, to modify hidden merge requests due to incorrect authorization enforcement.

Impact Analysis

The vulnerability could allow a developer-role user to modify hidden merge requests that they should not have access to. This could lead to unauthorized changes in code review processes, potentially introducing unapproved code changes or bypassing intended access controls.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade your GitLab CE/EE instance to a fixed version. Specifically, update to GitLab CE/EE version 18.10.8 or later, 18.11.5 or later, or 19.0.2 or later, depending on your current version.

This will ensure that the incorrect authorization enforcement allowing developer-role users to modify hidden merge requests is resolved.

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