GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user could have assigned compliance frameworks from namespaces they were not authorized to access to their own project, due to missing namespace validation on self-managed instances.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00242.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
GitLab GitLab unaffected
Version Status Constraints
18.3 affected < 19.1.7
19.2 affected < 19.2.5
19.3 affected < 19.3.1

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Gitlab Subscribe
Gitlab Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to versions 19.1.7, 19.2.5, 19.3.1 or above.

Workaround

No workaround given by the vendor.

References
Link Providers
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/ cve-icon cve-icon
https://gitlab.com/gitlab-org/gitlab/-/work_items/600360 cve-icon cve-icon
https://hackerone.com/reports/3549150 cve-icon cve-icon
History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user could have assigned compliance frameworks from namespaces they were not authorized to access to their own project, due to missing namespace validation on self-managed instances.
Title Authorization Bypass Through User-Controlled Key in GitLab
First Time appeared Gitlab
Gitlab gitlab
Weaknesses CWE-639
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Vendors & Products Gitlab
Gitlab gitlab
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Wed, 08 Apr 2026 22:30:00 +0000

Type Values Removed Values Added
Description This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-08-27T17:53:14.609Z

Reserved: 2026-03-18T17:04:36.341Z

Link: CVE-2026-4398

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-08T23:16:59.907

Modified: 2026-08-27T20:17:47.500

Link: CVE-2026-4398

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses