Vulnerability · Published Sep 17, 2026 · Assigned by VulnCheck

CVE-2026-92951vm2 before 3.11.7 Module Allowlist Bypass via Custom Resolver

Critical 9.9

In plain English

A critical-severity security flaw in vm2 from patriksimek. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.9Critical

Exploit odds (30 days)0.5%top 59.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	vm2	3.11.7	GHSA-c48m-32m9-vx93

Affected products (as reported)

Vendor	Product	Versions
patriksimek	vm2	0 – before 3.11.7

Weakness: CWE-706 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-c48m-32m9-vx93) vendor-advisory
VulnCheck Advisory: vm2 before 3.11.7 Module Allowlist Bypass via Custom Resolver third-party-advisory