Vulnerability library
Security checkMay 12, 2026

query-parser-string is vulnerable to Prototype Pollution

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High severitynpmquery-string-parser

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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.

Recommendation

No fix is available yet. Followings are affected versions:

  • = 1.0.0

References

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See something that needs correcting? Let us knowUpdated May 12, 2026