CVE-2022-39266

CRITICAL

isolated-vm <4.3.6 - RCE

Title source: llm

Description

isolated-vm is a library for nodejs which gives the user access to v8's Isolate interface. In versions 4.3.6 and prior, if the untrusted v8 cached data is passed to the API through CachedDataOptions, attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept `cachedData` payloads from a user.

Scores

CVSS v3 9.6
EPSS 0.0026
EPSS Percentile 48.9%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Classification

CWE
CWE-20 CWE-693
Status published

Affected Products (2)

isolated-vm_project/isolated-vm < 4.3.6
npm/isolated-vm < 4.3.7npm

Timeline

Published Sep 29, 2022
Tracked Since Feb 18, 2026