CVE-2026-92951

vm2 before 3.11.7 Module Allowlist Bypass via Custom Resolver

En bref

Sévérité: CRITICAL 9.4
EPSS: EPSS 0.54 % · centile 45 (2026-10-27)
État: PUBLISHED
Publiée: 2026-09-17
Mise à jour: 2026-09-17
Attribuée par: VulnCheck
Statut NVD: Deferred

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.

Scores

Version	Score	Vecteur	Évalué par
CVSS 4.0	CRITICAL 9.4	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	VulnCheck
CVSS 3.1	CRITICAL 9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	VulnCheck
CVSS 4.0	CRITICAL 9.4	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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · disclosure@vulncheck.com (Secondary)
CVSS 3.1	CRITICAL 9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	NVD · disclosure@vulncheck.com (Secondary)

Faiblesses (CWE)

CWE-706

Avis

GHSA-c48m-32m9-vx93 — vm2 Custom Module Resolver Can Bypass the External Package Allowlist by Loading a Colliding Host Package

Références européennes

ENISA EUVD · EUVD-2026-81600
GCVE · GCVE-0-2026-92951

Produits affectés

Produit	Versions
patriksimek · vm2	affected 0 < 3.11.7 ; unaffected 3.11.7

Références

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD