CVE-2022-39266
CRITICALisolated-vm < 4.3.6 - Sandbox Bypass via Untrusted CachedData
Title source: llmDescription
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.
References (4)
Core 4
Core References
Issue Tracking x_refsource_misc
https://github.com/laverdet/isolated-vm/issues/379
Third Party Advisory x_refsource_confirm
https://github.com/laverdet/isolated-vm/security/advisories/GHSA-2jjq-x548-rhpv
Scores
CVSS v3
9.6
EPSS
0.0027
EPSS Percentile
50.6%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-20
CWE-693
Status
published
Products (2)
isolated-vm_project/isolated-vm
< 4.3.6
npm/isolated-vm
0 - 4.3.7npm
Published
Sep 29, 2022
Tracked Since
Feb 18, 2026