CVE-2026-92945: vm2 before 3.11.7 Module Allowlist Bypass via Prefix Matching

Severity: medium (CVSS 4.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-17 · updated 2026-09-17
Weakness: CWE-22

Description

vm2 before 3.11.7 contains a module allowlist bypass vulnerability in isPathAllowedForModule that uses raw string prefix matching instead of boundary-anchored comparison. Attackers can reach non-allowlisted packages sharing a prefix with allowlisted modules by performing relative requires from allowlisted packages when transitive loading is disabled.

Affected products

patriksimek vm2: before 3.11.7 — fixed in 3.11.7

How to fix

Upgrade to a fixed version: patriksimek vm2 3.11.7. Check the vendor advisory for mitigations.

References

https://github.com/patriksimek/vm2/security/advisories/GHSA-7q3f-wx44-378m
https://www.vulncheck.com/advisories/vm2-before-3.11.7-module-allowlist-bypass-via-prefix-matching

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