CVE-2026-24781Public exploitNetwork attack vector

Host command execution via inspect proxy leak

Published May 4, 2026 · Updated May 4, 2026

Code injection in Patrik Simek vm2 before 3.11.0 allows attackers to escape its sandbox and execute commands on the host system. The util.inspect path unwraps proxies and exposes a BaseHandler through stylize state; its reachable constructor and set trap create a cross-realm channel to raw host objects. Exploitation requires arbitrary JavaScript already running inside a vm2 sandbox, after which host-process privileges and data are exposed.

CVSS severity9.8
Critical
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Patrik Simek vm2 before 3.11.0 allows attackers to escape its sandbox and execute commands on the host system. The util.inspect path unwraps proxies and exposes a BaseHandler through stylize state; its reachable constructor and set trap create a cross-realm channel to raw host objects. Exploitation requires arbitrary JavaScript already running inside a vm2 sandbox, after which host-process privileges and data are exposed.

The record

CVE
CVE-2026-24781
Published
May 4, 2026
Updated
May 4, 2026
Vendor
Patrik Simek
Product
vm2
Classifications
CWE-693, CWE-94, T1611
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 4, 2026CVE publishedPublication date reported by the CVE source.
  2. May 4, 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=< 3.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Patrik Simek · vm2version=< 3.11.0

Published CVSS scores

9.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
T1611Escape to Host

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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