What is GHSA-587p-w43q-4hjx?

GHSA-587p-w43q-4hjx is a security advisory published by GitHub Security Advisories with Critical severity. query-parser-string is vulnerable to Prototype Pollution

Which CVE IDs does GHSA-587p-w43q-4hjx cover?

GHSA-587p-w43q-4hjx covers the following CVE IDs: CVE-2025-63704. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-587p-w43q-4hjx?

GHSA-587p-w43q-4hjx has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

Which products are affected by GHSA-587p-w43q-4hjx?

GHSA-587p-w43q-4hjx affects 1 product, including: npm/query-string-parser:= 1.0.0.

GHSA-587p-w43q-4hjxCriticalCVSS 9.8

query-parser-string is vulnerable to Prototype Pollution

Vendor

GitHub Security Advisories

Published

May 7, 2026

Last Modified

May 12, 2026

🔗 CVE IDs covered (1)

CVE-2025-63704 →

📋 Description

NPM package query-parser-string 1.0.0 is vulnerable to Prototype Pollution. The package does not properly sanitize user supplied query parameters and merges them to the newly created object.

🎯 Affected products1

npm/query-string-parser:= 1.0.0

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2025-63704
https://github.com/victorteokw/query-string-parser/issues/3
https://gist.github.com/6en6ar/d62f614dbb2b1032b5e45a56fe26ec8b
https://www.npmjs.com/package/query-string-parser?activeTab=readme
https://github.com/advisories/GHSA-587p-w43q-4hjx