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Malicious code in shoaib-unity (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 shoaib-unity

    Affected
    >= 1.0.1, <= 1.0.1
    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 (01fd98b807f4f85a6e016b143dec086ea16de731fb1de0cd84763dbf5d8f6919) The gem declares an extension script (mkrf_conf.rb) that runs automatically during `gem install`. On execution, it collects installer host identifiers (current working directory, home directory, hostname, username) and reads the contents of /etc/resolv.conf, /etc/passwd, and /etc/hosts, serializes them as JSON, and transmits them over a TLS TCPSocket POST to the hardcoded host d8mjdyfukgwrvkth4n83toa0xr3lrgf5.oastify.com. Prior to the HTTP POST, the script performs a DNS resolution of the same oastify.com subdomain, providing a secondary out-of-band beacon via the attacker's DNS logs. oastify.com is PortSwigger Burp Collaborator infrastructure; a hardcoded unique subdomain in a published gem is a dedicated exfiltration channel to the publisher, not a legitimate telemetry sink.

Source: ossf-package-analysis…

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

    Published from osv record MAL-2026-18461

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-2026-18461

Advisory: Malicious code in shoaib-unity (RubyGems)
IDs: mal-2026-18461
Record: https://patchnext.com/advisories/mal-2026-18461 (revision 1, source checked 3 Nov 2026, 06:10 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 shoaib-unity: affected >= 1.0.1, <= 1.0.1

## Suggested inspection (read-only)
- RubyGems shoaib-unity: 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 shoaib-unity.
- 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-2026-18461 (OSV record MAL-2026-18461 lists affected ranges: RubyGems shoaib-unity >=1.0.1 <=1.0.1)

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