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OpenAdvisories
Critical · 9.8 CVE-2025-63704 EUVD-2025-209730GHSA-587p-w43q-4hjx

query-parser-string is vulnerable to Prototype Pollution

Published May 7, 2026 · Updated May 8, 2026 · Assigned by mitre

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 packages

EcosystemPackageAffectedFixedRecord
npm query-string-parser 1.0.0 — GHSA-587p-w43q-4hjx

References