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Advisories

vm2 before 3.11.7 Module Allowlist Bypass via Custom Resolver

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severity
critical
date
Affecting

  • vm2 >= 0, < 3.11.7

CWE
  • CWE-706 Use of Incorrectly-Resolved Name or Reference
CVSS
9.4
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Credit
XlabAITeam, keenanwgn, liangjs
Description
vm2 before 3.11.7 contains an incorrect authorization vulnerability in the external package allowlist check that uses non-exact substring matching instead of full package-name boundary validation. Attackers can bypass the allowlist by requiring a colliding package name that contains an allowlisted package substring, causing vm2 to load and execute unauthorized host packages in the host context.

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