Description
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.
Published: 2023-08-02
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Upgrade to versions 16.2.2, 16.1.3, 16.0.8 or above.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2023-44617 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.
History

Thu, 03 Oct 2024 09:45:00 +0200

Type Values Removed Values Added
Weaknesses CWE-400

Thu, 03 Oct 2024 08:30:00 +0200

Type Values Removed Values Added
Title Uncontrolled Resource Consumption in GitLab Inefficient Regular Expression Complexity in GitLab

Thu, 19 Sep 2024 04:30:00 +0200

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 31 Aug 2024 10:30:00 +0200

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 30 Aug 2024 22:30:00 +0200

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 29 Aug 2024 17:15:00 +0200

Type Values Removed Values Added
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-04-27T04:06:31.406Z

Reserved: 2023-07-28T09:01:26.489Z

Link: CVE-2023-3994

cve-icon Vulnrichment

Updated: 2024-08-02T07:08:50.873Z

cve-icon NVD

Status : Modified

Published: 2023-08-02T01:15:09.773

Modified: 2026-06-17T06:15:39.307

Link: CVE-2023-3994

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-08-02T00:00:00Z

Links: CVE-2023-3994 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses