Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.2 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 regular expression denial of service by sending specially crafted input to a merge request endpoint under certain conditions.

INFO

Published Date :

2026-02-25T20:05:05.289Z

Last Modified :

2026-02-26T15:07:56.004Z

Source :

GitLab
AFFECTED PRODUCTS

The following products are affected by CVE-2026-1388 vulnerability.

Vendors Products
Gitlab
  • Gitlab
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-1388.

URL Resource
https://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-released/ cve-icon cve-icon
https://gitlab.com/gitlab-org/gitlab/-/issues/587560 cve-icon cve-icon
https://hackerone.com/reports/3482893 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact