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GHSA-7PWQ-Q9JF-539H kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)

🗓️ 18 Aug 2026 20:09:59Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Kobako 0.1.0-0.9.0: guest mruby scripts escape sandbox via public_send to host RCE.

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18 Aug 2026 20:15Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.110
2