GitLab Community Edition/Enterprise Edition preview_markdown Endpoint resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in GitLab Community Edition and Enterprise Edition. This vulnerability affects unknown code of the component preview_markdown Endpoint. Such manipulation leads to resource consumption. This vulnerability is listed as CVE-2023-3994. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition (Bug Tracking Software) (unknown version). It has been rated as problematic. Affected by this issue is an unknown code block of the component preview_markdown Endpoint. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

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.

The weakness was presented 08/02/2023 as 416225. The advisory is available at gitlab.com. This vulnerability is handled as CVE-2023-3994 since 07/28/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-44617). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (GitLab Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/28/2023 🔍
08/02/2023 +5 days 🔍
08/02/2023 +0 days 🔍
11/20/2025 +841 days 🔍

Sourcesinfo

Vendor: gitlab.com

Advisory: 416225
Status: Confirmed

CVE: CVE-2023-3994 (🔍)
GCVE (CVE): GCVE-0-2023-3994
GCVE (VulDB): GCVE-100-235898
EUVD: 🔍

Entryinfo

Created: 08/02/2023 09:48
Updated: 11/20/2025 17:43
Changes: 08/02/2023 09:48 (50), 10/03/2024 10:38 (27), 11/20/2025 17:43 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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