CVE-2025-63704
Critical · 9.8CVSS
9.8
EPSS
0.5%
Published
May 7, 2026
CISA due date
—
The record
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
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | query-string-parser | 1.0.0 | No fix |
Related vulnerabilities
- GHSA-587p-w43q-4hjx query-parser-string is vulnerable to Prototype Pollution Same vulnerability
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