CVE-2026-45411
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.
Published:May 13, 2026
Last Modified:May 14, 2026
EPS:May 13, 2026
EPSS Score:0.00054
CVSS Score:9.8
Affected Products
Vendor
Product
Action
Vendor
Patriksimek
Product
Vm2
Patriksimek
Vm2
Vendor
Vm2 Project
Product
Vm2
Vm2 Project
Vm2
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
