CVE-2026-1388

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1333

Affected software

No affected versions have been published.

Timeline

Published
Feb 25, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-1388: High severity, CVSS 7.5 | Vulnix