arr-pm vulnerable to arbitrary shell execution when extracting or listing files contained in a malicious rpm.

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

7.0 · CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

• CVE-2022-39224: 1.46% estimated exploitation activity in the next 30 days; percentile 73.53 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact Arbitrary shell execution is possible when using RPM::File#files and RPM::File#extract if the RPM contains a malicious "payload compressor" field. This vulnerability impacts the extract and files methods of the RPM::File class in the affected versions of this library. Patches Version 0.0.12 is available with a fix for these issues. Workarounds When using an affected version of this library (arr-pm), ensure any RPMs being processed contain valid/known payload compressor values. Such values include: gzip, bzip2, xz, zstd, and lzma. You can check the payload compressor field in an rpm by using the rpm command line tool. For example: Impact on known dependent projects This library is used by fpm. The vulnerability may impact fpm only when using the flag -s rpm or --input-type rpm to convert a malicious rpm to another format. It does not impact creating rpms. References https://github.com/jordansissel/ruby-arr-pm/pull/14 https://github.com/jordansissel/ruby-arr-pm/pull/15 Credit…

Published by the source

21 Sep 2022, 17:00 UTC

Last modified by the source

31 Jan 2023, 05:04 UTC

Source last checked

26 Oct 2026, 15:44 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-88cv-mj24-8w3q

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# Patch Next advisory brief: CVE-2022-39224

Advisory: arr-pm vulnerable to arbitrary shell execution when extracting or listing files contained in a malicious rpm.
IDs: CVE-2022-39224, GHSA-88cv-mj24-8w3q
Record: https://patchnext.com/advisories/cve-2022-39224 (revision 1, source checked 26 Oct 2026, 15:44 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.0)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: arr-pm 0.0.12. A vendor fix does not mean a deployment is fixed.

## Affected components
- RubyGems arr-pm: affected < 0.0.12; fixed in 0.0.12

## Suggested inspection (read-only)
- RubyGems arr-pm: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on arr-pm.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-88cv-mj24-8w3q (GitHub-reviewed advisory GHSA-88cv-mj24-8w3q lists affected ranges: RubyGems arr-pm >=0 <0.0.12)

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