by Kastro
Paper/Archive/CVE-2026-92955

CVE-2026-92955

patriksimek vm2 — vm2 before 3.11.8 Sandbox Escape via NodeVM

EPSS 0.7%public exploitCVSS 10.0
critical.is priorityof 100
51
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 53.6.536 × 2010.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

vm2 before 3.11.8 contains a sandbox escape vulnerability in NodeVM that allows attackers to access the host __proto__ getter/setter through console._stdout and console._stderr. Attackers can overwrite EventEmitter.prototype.emit and trigger process events to execute code with process context, bypassing code generation restrictions.

Affected

ProductAffectedFixed inSource
vm2< 3.11.83.11.8CNA

Scores by source

VulnCheck (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
VulnCheck (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/patriksimek/vm2/security/advisories/GHSA-88hf-g992-jg85writeupvulncheck.com/advisories/vm2-before-3.11.8-sandbox-escape-via-nodevm