CVE-2026-1402
Denial of Service in GitLab CE/EE
Publication date: 2026-05-27
Last updated on: 2026-05-27
Assigner: GitLab Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gitlab | gitlab | From 18.11.0 (inc) to 18.11.4 (exc) |
| gitlab | gitlab | 19.0.0 |
| gitlab | gitlab | From 18.11.0 (inc) to 18.11.4 (exc) |
| gitlab | gitlab | 19.0.0 |
| gitlab | gitlab | From 17.1.0 (inc) to 18.10.7 (exc) |
| gitlab | gitlab | From 17.1.0 (inc) to 18.10.7 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-770 | The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in GitLab CE/EE affects versions from 17.1 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1. Under certain conditions, it allows an authenticated user to cause a denial of service due to insufficient validation.
How can this vulnerability impact me? :
The impact of this vulnerability is a denial of service (DoS) attack, which means an authenticated user could disrupt the normal functioning of the GitLab service, potentially making it unavailable to other users.
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 18.10.7 or later if you are using the 18.10 series, 18.11.4 or later if using the 18.11 series, or 19.0.1 or later if using the 19.0 series.