Express.js minimalist web framework for node. Prior to 5.2.0 and 4.22.0, when using the extended query parser in express ('query parser': 'extended'), the request.query object inherits all object prototype properties, but these properties can be overwritten by query string parameter keys that match the property names. This vulnerability is fixed in 5.2.0 and 4.22.0.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

No data.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-pj86-cfqh-vqx6 express improperly controls modification of query properties
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/expressjs/express/commit/2f64f68c37c64ae333e41ff38032d21860f22255 cve-icon cve-icon
https://github.com/expressjs/express/releases/tag/4.22.0 cve-icon cve-icon
https://github.com/expressjs/express/releases/tag/v5.2.0 cve-icon cve-icon
https://github.com/expressjs/express/security/advisories/GHSA-pj86-cfqh-vqx6 cve-icon cve-icon
History

Mon, 01 Dec 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 01 Dec 2025 20:30:00 +0000

Type Values Removed Values Added
Description Express.js minimalist web framework for node. Prior to 5.2.0 and 4.22.0, when using the extended query parser in express ('query parser': 'extended'), the request.query object inherits all object prototype properties, but these properties can be overwritten by query string parameter keys that match the property names. This vulnerability is fixed in 5.2.0 and 4.22.0.
Title express improperly controls modification of query properties
Weaknesses CWE-915
References
Metrics cvssV4_0

{'score': 2.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-12-01T20:28:00.971Z

Reserved: 2024-11-04T17:46:16.778Z

Link: CVE-2024-51999

cve-icon Vulnrichment

Updated: 2025-12-01T20:27:56.925Z

cve-icon NVD

Status : Received

Published: 2025-12-01T21:15:49.100

Modified: 2025-12-01T21:15:49.100

Link: CVE-2024-51999

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.