CVE-2026-1458
Analyzed Analyzed - Analysis Complete
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
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.0 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an unauthenticated user to cause denial of service by uploading malicious files.
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Meta Information
Published
2026-02-11
Last Modified
2026-02-12
Generated
2026-06-16
AI Q&A
2026-02-11
EPSS Evaluated
2026-06-15
NVD
CVE-2026-1458
EUVD
EUVD-2026-7046
Affected Vendors & Products
Showing 6 associated CPEs
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
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KEV
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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.
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
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Executive Summary

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.

Impact Analysis

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.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

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.

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