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RLSA-2026:20596 Important: ruby:4.0 security update

🗓️ 28 May 2026 15:43:06Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

Ruby 4.0 security update fixes JSON format string injection and ERB deserialization bypass that could lead to code execution.

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28 May 2026 16:00Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.19.1
EPSS0.00048
4