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kobako Sandbox Escape - guest eval reaches host RCE via method_missing → public_send (any bound Service)

🗓️ 18 Aug 2026 00:00:00Reported by RubySecType 
rubygems
 rubygems
🔗 rubysec.com👁 11 Views

Kobako sandbox escape via guest eval reaches host RCE through method_missing and public_send on any bound Service.

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18 Aug 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
11