CVE-2026-1662
Received Received - Intake
Denial of Service in GitLab Jira Events Endpoint

Publication date: 2026-02-25

Last updated on: 2026-02-28

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.4 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause Denial of Service by sending specially crafted requests to the Jira events endpoint.
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Meta Information
Published
2026-02-25
Last Modified
2026-02-28
Generated
2026-06-16
AI Q&A
2026-02-25
EPSS Evaluated
2026-06-14
NVD
CVE-2026-1662
EUVD
EUVD-2026-8722
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
gitlab gitlab From 18.8.0 (inc) to 18.8.5 (exc)
gitlab gitlab From 18.8.0 (inc) to 18.8.5 (exc)
gitlab gitlab 18.9.0
gitlab gitlab 18.9.0
gitlab gitlab From 14.4.0 (inc) to 18.7.5 (exc)
gitlab gitlab From 14.4.0 (inc) to 18.7.5 (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 affects GitLab CE/EE versions from 14.4 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1. It allows an unauthenticated user to cause a Denial of Service (DoS) by sending specially crafted requests to the Jira events endpoint.

Impact Analysis

The impact of this vulnerability is a Denial of Service condition, meaning that an attacker can disrupt the normal operation of the GitLab service by making it unavailable or unresponsive through specially crafted requests to the Jira events endpoint.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. The affected versions are all releases from 14.4 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1. Applying the latest patches or upgrading to versions 18.7.5, 18.8.5, 18.9.1 or later will remediate the issue.

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