CVE-2026-1458
Denial of Service via Malicious File Upload in GitLab CE/EE
Publication date: 2026-02-11
Last updated on: 2026-02-12
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 18.7.0 (inc) to 18.7.4 (exc) |
| gitlab | gitlab | From 18.8.0 (inc) to 18.8.4 (exc) |
| gitlab | gitlab | From 8.0.0 (inc) to 18.6.6 (exc) |
| gitlab | gitlab | From 18.7.0 (inc) to 18.7.4 (exc) |
| gitlab | gitlab | From 18.8.0 (inc) to 18.8.4 (exc) |
| gitlab | gitlab | From 8.0.0 (inc) to 18.6.6 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-434 | The product allows the upload or transfer of dangerous file types that are automatically processed within its environment. |
| 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 8.0 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4. Under certain conditions, it allows an unauthenticated user to cause a denial of service by uploading malicious files.
How can this vulnerability impact me? :
The impact of this vulnerability is a denial of service (DoS) condition. An attacker who is not authenticated can upload malicious files that disrupt the normal operation of the GitLab service, potentially making it unavailable to legitimate users.
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, update GitLab CE/EE to a fixed version. Specifically, upgrade to version 18.6.6 or later if you are using the 8.0 to 18.6 series, 18.7.4 or later if using the 18.7 series, or 18.8.4 or later if using the 18.8 series.
This update will prevent unauthenticated users from causing denial of service by uploading malicious files.