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Shopify: mruby-engine: UAF in MRubyEngine#initialize enables local RCE

🗓️ 17 Apr 2026 07:47:19Reported by 0xd0ff9Type 
hackerone
 hackerone
🔗 hackerone.com👁 19 Views

UAF in MRubyEngine initialize frees engine before arg validation, leaves dangling DATA_PTR enabling local execution.

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24 Apr 2026 21:09Current
5.8Medium risk
Vulners AI Score5.8
19