CVE-2026-92937Public exploitNetwork attack vector

Host command execution via Promise handler indirection

Published Sep 17, 2026 · Updated Sep 18, 2026

Sandbox escape in Patrik Simek vm2 3.11.6 allows remote attackers to execute commands in the host Node.js process via untrusted code. The bridge gate in lib/bridge.js checks only the direct call target, so Function.prototype.call or .apply skips rejection-value sanitization and passes a raw host error into the sandbox. Exploitation requires an exposed host Promise to reject with a non-primitive property referencing a host object, after which sandbox code gains the host process privileges.

CVSS severity10.0
Critical
EPSS probability1.03%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sandbox escape in Patrik Simek vm2 3.11.6 allows remote attackers to execute commands in the host Node.js process via untrusted code. The bridge gate in lib/bridge.js checks only the direct call target, so Function.prototype.call or .apply skips rejection-value sanitization and passes a raw host error into the sandbox. Exploitation requires an exposed host Promise to reject with a non-primitive property referencing a host object, after which sandbox code gains the host process privileges.

The record

CVE
CVE-2026-92937
Published
Sep 17, 2026
Updated
Sep 18, 2026
Vendor
Patrik Simek
Product
vm2
Classifications
CWE-693, CWE-94, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.11.6 <3.11.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Patrik Simek · vm2version=3.11.6 <3.11.7

Published CVSS scores

10.0GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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