CVE-2026-1663
Improper Authorization in GitLab Group Import Enables Label Creation
Publication date: 2026-03-11
Last updated on: 2026-03-13
Assigner: GitLab Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gitlab | gitlab | From 18.8.0 (inc) to 18.8.6 (exc) |
| gitlab | gitlab | From 18.9.0 (inc) to 18.9.2 (exc) |
| gitlab | gitlab | From 18.8.0 (inc) to 18.8.6 (exc) |
| gitlab | gitlab | From 18.9.0 (inc) to 18.9.2 (exc) |
| gitlab | gitlab | From 14.4.0 (inc) to 18.7.6 (exc) |
| gitlab | gitlab | From 14.4.0 (inc) to 18.7.6 (exc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in GitLab CE/EE affects versions from 14.4 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2. It allows an authenticated user who has group import permissions to create labels in private projects. This happens because of improper authorization validation during the group import process under certain circumstances.
How can this vulnerability impact me? :
The vulnerability could allow an authenticated user with group import permissions to create labels in private projects where they might not otherwise have such permissions. This could lead to unauthorized modifications within private projects, potentially affecting project organization or workflow.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. Specifically, update to version 18.7.6 or later if you are using the 18.7 series, 18.8.6 or later if using the 18.8 series, or 18.9.2 or later if using the 18.9 series.
This vulnerability affects all versions from 14.4 before these fixed versions and could allow an authenticated user with group import permissions to create labels in private projects due to improper authorization validation.