Malicious code in zwkopt18 (RubyGems)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (2c108c943a44c2a4b28926a7487319d9aade49d9b3bb8377670946d5ea64cd1f) --- Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/zwkopt18/MAL-2026-9881.json))
AI Analysis
Technical Summary
The package 'zwkopt18' in the RubyGems ecosystem at version 0.0.3509 has been identified as containing malicious code. This classification comes from the OpenSSF malicious packages repository and is tracked under MAL-2026-9881 and GHSA-542v-rj3r-xp97. There is no detailed vulnerability or exploit description available, nor any CVSS scoring. No patch or remediation information is provided, and the package is not a cloud service.
Potential Impact
The presence of malicious code in the specified package version poses a risk of compromise if the package is installed and used. However, no specific impact details or exploitation reports are available. Known exploits in the wild have not been reported.
Mitigation Recommendations
No official patch or remediation guidance is provided. Users should avoid using the affected version (=0.0.3509) of the 'zwkopt18' package. Consider removing or replacing this package if it is present in your environment. Monitor official advisories for updates or remediation instructions.
Malicious code in zwkopt18 (RubyGems)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (2c108c943a44c2a4b28926a7487319d9aade49d9b3bb8377670946d5ea64cd1f) --- Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/zwkopt18/MAL-2026-9881.json))
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The package 'zwkopt18' in the RubyGems ecosystem at version 0.0.3509 has been identified as containing malicious code. This classification comes from the OpenSSF malicious packages repository and is tracked under MAL-2026-9881 and GHSA-542v-rj3r-xp97. There is no detailed vulnerability or exploit description available, nor any CVSS scoring. No patch or remediation information is provided, and the package is not a cloud service.
Potential Impact
The presence of malicious code in the specified package version poses a risk of compromise if the package is installed and used. However, no specific impact details or exploitation reports are available. Known exploits in the wild have not been reported.
Mitigation Recommendations
No official patch or remediation guidance is provided. Users should avoid using the affected version (=0.0.3509) of the 'zwkopt18' package. Consider removing or replacing this package if it is present in your environment. Monitor official advisories for updates or remediation instructions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-9881
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-542v-rj3r-xp97"]
- Ecosystems
- ["RubyGems"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5ba1b944ab8fbf7c78b3e4
Added to database: 07/18/2026, 15:54:33 UTC
Last enriched: 07/18/2026, 16:38:35 UTC
Last updated: 07/27/2026, 20:31:17 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.