CVE-2026-112378: GitLab Enterprise Edition authorization bypass in billing validation

CVE-2026-112378 · Severity: medium · CVSS 4.3 · Published 2026-10-22

GitLab Enterprise Edition, which provides source code management and CI/CD capabilities for development teams, has a flaw in its billing system that allows authenticated users to access premium AI features without paying for them. An attacker with a valid account could gain access to paid AI capabilities that should be restricted to subscribers, effectively obtaining unauthorized functionality.

Technologies: GitLab Enterprise Edition. Vendors: GitLab.

Quick answers

Is CVE-2026-112378 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-112378 being exploited in the wild.
How severe is CVE-2026-112378?
Medium severity, with a CVSS score of 4.3, published 22 October 2026.
Which products and versions are affected?
GitLab Enterprise Edition 17.8 before 19.3.6, 19.4 before 19.4.3, 19.5 before 19.5.1.
Is there a fix for CVE-2026-112378?
Yes: fixed in GitLab EE 19.3.6, 19.4.3, 19.5.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-112378 attacked?
It is attacked over the network.
Am I affected by CVE-2026-112378?
Check whether you run GitLab Enterprise Edition at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: GitLab EE 19.3.6, 19.4.3, 19.5.1

Technical details

An authenticated user can bypass billing eligibility checks due to insufficient server-side validation, allowing access to paid AI features without a valid subscription. The vulnerability requires authentication and affects versions 17.8 through 19.5.0. A fix is available in GitLab EE 19.3.6, 19.4.3, and 19.5.1.

Affected products

  • GitLab Enterprise Edition 17.8 before 19.3.6, 19.4 before 19.4.3, 19.5 before 19.5.1

Timeline

  • 2026-10-22: disclosed
  • 2026-10-21: patched

References

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