MalwarePublished 7 Jul 2026Updated 24 Sep 2026

zwknum7 (RubyGems) · Malicious Code

Affects zwknum7Source GCVE Database

Malicious package : remove zwknum7 and rotate any secrets on hosts that installed it.

Data as of 26 Oct 2026, 16:06 UTC

Classification

Malicious package

Published to RubyGems · OSV MAL-2026-9870

What to do

Remove zwknum7 from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
RubyGemszwknum7`pkg:gem/zwknum7`Other threats	Affected =0.0.2774	Fixed in–

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Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (ef3185ddb553c5993d04b36576d076600e3ee9cb274ba3f799fc23308b42e9fd) --- Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/zwknum7/MAL-2026-9870.json))

Impact

Use of the affected package version 0.0.2774 may lead to execution of malicious code within environments that install or run this package. The specific impact depends on the malicious payload embedded in the package, which is not detailed in the provided data. No known exploits in the wild have been reported.

Defensive guidance

Since this is a malicious package, the primary mitigation is to avoid using the affected version (=0.0.2774) of 'zwknum7'. Users should remove or replace this package version from their dependency trees and verify the integrity of RubyGems packages before use.

Summary

The package 'zwknum7' version 0.0.2774 in the RubyGems ecosystem has been flagged for containing malicious code. This identification comes from the OpenSSF malicious packages repository and is cataloged under MAL-2026-9870. There is no detailed vulnerability or exploit description available, nor is there a vendor advisory or patch information. The threat is classified as a malicious package rather than a traditional vulnerability.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 18 Jul 2026, 16:40 UTC

Technical details

References

Community reviews