Regular Expression Denial of Service in GitLab CE/EE via Crafted Payloads in ProjectReferenceFilter

Regular Expression Denial of Service in GitLab CE/EE via Crafted Payloads in ProjectReferenceFilter

CVE-2023-3994 · HIGH Severity

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

An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.

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