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Advisories

vm2 before 3.11.8 Sandbox Escape RCE via AggregateError

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severity
critical
date
Affecting

  • vm2 >= 0, < 3.11.8

CWE
  • CWE-693 Protection Mechanism Failure
CVSS
9.5
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Credit
manus-use, maru1009
Description
vm2 before 3.11.8 contains an incomplete fix for Error.cause sanitization that allows sandbox escape when revisited host-wrapped AggregateError objects are caught within a single exception handler traversal. Attackers can exploit cycle detection bypass in handleException to access unsanitized host proxies embedded in the errors array, enabling full remote code execution and process information disclosure from the sandbox.

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