CVE-2026-1102
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-22

Last updated on: 2026-01-26

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.3 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that could have allowed an unauthenticated user to create a denial of service condition by sending repeated malformed SSH authentication requests.
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Meta Information
Published
2026-01-22
Last Modified
2026-01-26
Generated
2026-06-16
AI Q&A
2026-01-22
EPSS Evaluated
2026-06-14
NVD
EUVD
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
gitlab gitlab From 12.3.0 (inc) to 18.6.4 (exc)
gitlab gitlab From 12.3.0 (inc) to 18.6.4 (exc)
gitlab gitlab From 18.7.0 (inc) to 18.7.2 (exc)
gitlab gitlab From 18.7.0 (inc) to 18.7.2 (exc)
gitlab gitlab From 18.8.0 (inc) to 18.8.2 (exc)
gitlab gitlab From 18.8.0 (inc) to 18.8.2 (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.
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Executive Summary

This vulnerability in GitLab CE/EE allows an unauthenticated user to cause a denial of service by sending repeated malformed SSH authentication requests. It affects versions from 12.3 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2.

Impact Analysis

The impact of this vulnerability is a denial of service condition, meaning an attacker could disrupt the availability of the GitLab service by sending repeated malformed SSH authentication requests without needing to authenticate.

Mitigation Strategies

Update GitLab CE/EE to version 18.6.4 or later, 18.7.2 or later, or 18.8.2 or later, depending on your current version, to apply the fix that prevents unauthenticated users from creating a denial of service condition via malformed SSH authentication requests.

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