MalwarePublished 7 Jul 2026Updated 24 Sep 2026

zwtd101 (RubyGems) · Malicious Code

Affects zwtd101Source GCVE Database

Malicious package : remove zwtd101 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-2026-9901

What to do

Remove zwtd101 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
RubyGemszwtd101`pkg:gem/zwtd101`Other threats	Affected =0.0.1	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (d4c526cb91a906ae644544d2c31076e1caa3ded53868efafee1543f4ccc41adc) --- Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/zwtd101/MAL-2026-9901.json))

Impact

Installation or use of the 'zwtd101' RubyGem version 0.0.1 may lead to execution of malicious code, potentially compromising the security of the environment where it is deployed. Specific impacts are not detailed in the source data, but malicious packages generally pose risks such as data theft, unauthorized access, or system compromise.

Defensive guidance

Avoid using the 'zwtd101' RubyGem version 0.0.1. Since this is a malicious package, the best mitigation is to remove or not install this package. Users should verify the integrity and provenance of RubyGems packages before installation and rely on trusted sources. Monitor vendor advisories or the OpenSSF repository for updates or further guidance.

Summary

The RubyGems package 'zwtd101' at version 0.0.1 has been identified as containing malicious code. This classification is based on analysis by the OpenSSF and is cataloged under the MAL-2026-9901 advisory. There is no CVSS score or detailed vulnerability description available, and no known exploits in the wild have been reported. The package is flagged as malicious rather than a traditional vulnerability, indicating it may be designed to perform harmful actions if installed or executed.

References

Community reviews

Loading reviews…

What to do

Affected software

Description

AI analysisMachine-generated, updated 18 Jul 2026, 16:36 UTC

Technical details

References

Community reviews