CVE-2026-45411
vm2: Sandbox Breakout Using Async Generator
Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.3, it is possible to catch a host exception using the yield* expression inside an async generator. When the generator is closed using the return function, the value is awaited on and exceptions thrown in the then call will be caught by the runtime and passed to the yield* iterator as the next value. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is fixed in 3.11.3.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
patriksimek
oss-project
vm2Library
OSS Libraries / npmvm2 project
oss-projectaka vm2
vm2Library
OSS Libraries / npmNode.js Foundation
oss-project·USaka nodejs foundation, node foundation
Exploitability
Official Patch Available
References
https://github.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24
github.com
https://access.redhat.com/errata/RHSA-2026:50850
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-45411
access.redhat.com
and 2 more references View all →
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