Stored Cross-Site Scripting Vulnerability in GitLab Kubernetes Proxy
CVE-2025-11224

7.7HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
14 January 2026

What is CVE-2025-11224?

A stored cross-site scripting vulnerability in GitLab's Kubernetes proxy functionality has been identified, allowing authenticated users to execute arbitrary scripts. This issue arises from inadequate input validation, potentially enabling malicious actors to manipulate user sessions and execute harmful scripts within the context of the affected application. The vulnerability impacts various versions of GitLab CE/EE, making it essential for users to update to the patched releases to mitigate the risk.

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Deploy the Patch

Affected Version(s)

GitLab 15.10 < 18.3.6

GitLab 18.4 < 18.4.4

GitLab 18.5 < 18.5.2

References

https://about.gitlab.com/releases/2025/11/12/patch-releas...
https://gitlab.com/gitlab-org/gitlab/-/issues/573223
issue-trackingpermissions-required
https://hackerone.com/reports/3277291
technical-descriptionexploitpermissions-required

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program
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