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Malicious code in macs-shoaibs-pro17 (RubyGems)

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • RubyGems macs-shoaibs-pro17

    Affected
    >= 90002.1, <= 90002.1
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

--- _-= Per source details. Do not edit below this line.=-_

Source: amazon-inspector (0c7ce0186e7517c1df32cfd61177f90bee77d43a19d7c3963cc657e07109123a) The gem declares ext/mkrf_conf.rb as a native extension, which RubyGems auto-executes during `gem install`. The script contains no mkmf/rake build logic (no create_makefile, have_header, or compiler invocation). Instead it reads /etc/passwd, /etc/hosts, /etc/resolv.conf, the hostname, the current user, and the working directory, opens a TLS connection via TCPSocket to d5jjaycuhgtrskqh1n53qo70ur0kobc0.oastify.com:443 (a Burp Collaborator subdomain), and POSTs the collected data to that host before writing a.installed marker. The gemspec summary ("A simple gem for demonstration purposes") does not correspond to any functionality present in the package.

Source: ossf-package-analysis (b839ba696947a26e059bc82d4feb35120e11ff4885ff5bc5da19d9800f51f837) The OpenSSF Package Analysis project identified 'macs-shoaibs-pro17' @ 90002.1…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from osv record MAL-2026-18436

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: mal-2026-18436

Advisory: Malicious code in macs-shoaibs-pro17 (RubyGems)
IDs: mal-2026-18436
Record: https://patchnext.com/advisories/mal-2026-18436 (revision 1, source checked 2 Nov 2026, 06:00 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- RubyGems macs-shoaibs-pro17: affected >= 90002.1, <= 90002.1

## Suggested inspection (read-only)
- RubyGems macs-shoaibs-pro17: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on macs-shoaibs-pro17.
- 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://osv.dev/vulnerability/MAL-2026-18436 (OSV record MAL-2026-18436 lists affected ranges: RubyGems macs-shoaibs-pro17 >=90002.1 <=90002.1)

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