MalwarePublished 7 Jul 2026Updated 24 Sep 2026

zwan_cal_jana (RubyGems) · Malicious Code

Affects zwan_cal_janaSource GCVE Database

Malicious package : remove zwan_cal_jana 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-2026-9838

What to do

Remove zwan_cal_jana 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
RubyGemszwan_cal_jana`pkg:gem/zwan_cal_jana`Other threats	Affected =0.0.132	Fixed in–

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Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (c20b427949e02e65b631b9d640206cc2e4df7e4289f397a78740d71a43b435af) --- Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/zwan_cal_jana/MAL-2026-9838.json))

Impact

Using the malicious 'zwan_cal_jana' package version 0.0.132 may result in executing harmful code within the affected environment. The exact impact is not detailed, but malicious packages typically pose risks such as data compromise, unauthorized access, or system disruption. No known exploits have been reported in the wild.

Defensive guidance

Avoid using the 'zwan_cal_jana' package version 0.0.132. Since this is a malicious package rather than a vulnerability with a patch, remediation involves removing or not installing this package. Monitor RubyGems sources and use trusted package versions.

Summary

The 'zwan_cal_jana' RubyGems package at version 0.0.132 is identified as containing malicious code according to the OpenSSF malicious packages repository. This classification indicates the package itself is intentionally harmful or compromised, rather than a vulnerability that can be fixed by patching. No further technical details, CVSS score, or exploit data are available from the source. The package should be considered untrusted and avoided.

References

github.com/advisories/GHSA-q5wm-qvm2-5grx (opens in a new tab)

Community reviews

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What to do

Affected software

Description

AI analysisMachine-generated, updated 18 Jul 2026, 16:43 UTC

Technical details

References

Community reviews