CVE-2025-12029
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-11

Last updated on: 2025-12-11

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have, under certain circumstances, allowed an unauthenticated user to perform unauthorized actions on behalf of another user by injecting malicious external scripts into the Swagger UI."
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Meta Information
Published
2025-12-11
Last Modified
2025-12-11
Generated
2026-06-16
AI Q&A
2025-12-11
EPSS Evaluated
2026-06-15
NVD
CVE-2025-12029
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
gitlab gitlab_ce 15.11
gitlab gitlab_ce 18.4.6
gitlab gitlab_ce 18.5
gitlab gitlab_ce 18.6
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability in GitLab CE/EE versions before certain fixed releases allows an unauthenticated user to perform unauthorized actions on behalf of another user by injecting malicious external scripts into the Swagger UI under certain circumstances.

Impact Analysis

The vulnerability can lead to unauthorized actions being performed on your behalf without authentication, potentially compromising your account and data integrity due to malicious script injection.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version: 18.4.6 or later for the 18.4 branch, 18.5.4 or later for the 18.5 branch, or 18.6.2 or later for the 18.6 branch. This will prevent unauthenticated users from performing unauthorized actions via malicious script injection in the Swagger UI.

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