CVE-2026-45411: CWE-668: Exposure of Resource to Wrong Sphere in patriksimek vm2
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.
AI Analysis
Technical Summary
The vm2 Node.js sandbox prior to version 3.11.3 contains a vulnerability where exceptions thrown during the awaiting of a value in an async generator's yield* expression can be caught and passed back into the generator. This behavior allows an attacker to craft code that escapes the vm2 sandbox and execute arbitrary commands on the host system. The issue is addressed in vm2 version 3.11.3.
Potential Impact
Successful exploitation allows an attacker to break out of the vm2 sandbox environment and execute arbitrary commands on the host system, leading to full compromise of the host. The CVSS v3.1 score is 9.8 (critical), reflecting high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in vm2 version 3.11.3. Users should upgrade to version 3.11.3 or later to remediate this vulnerability. The Red Hat advisory linked confirms the existence of the vulnerability and the availability of a fix. No additional mitigation steps are specified.
CVE-2026-45411: CWE-668: Exposure of Resource to Wrong Sphere in patriksimek vm2
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.
CVSS v3.1
Score 9.8critical
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vm2 Node.js sandbox prior to version 3.11.3 contains a vulnerability where exceptions thrown during the awaiting of a value in an async generator's yield* expression can be caught and passed back into the generator. This behavior allows an attacker to craft code that escapes the vm2 sandbox and execute arbitrary commands on the host system. The issue is addressed in vm2 version 3.11.3.
Potential Impact
Successful exploitation allows an attacker to break out of the vm2 sandbox environment and execute arbitrary commands on the host system, leading to full compromise of the host. The CVSS v3.1 score is 9.8 (critical), reflecting high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in vm2 version 3.11.3. Users should upgrade to version 3.11.3 or later to remediate this vulnerability. The Red Hat advisory linked confirms the existence of the vulnerability and the availability of a fix. No additional mitigation steps are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-12T01:48:40.452Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-45411","vendor":"Red Hat"}]
Threat ID: 6a04ba26cbff5d8610f48375
Added to database: 05/13/2026, 17:51:34 UTC
Last enriched: 07/15/2026, 09:23:07 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 128
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