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CVE-2026-45411

9.8 · CRITICAL

vm2 is an open source vm/sandbox for Node.js.

Published May 13, 2026CWE-668EPSS 0.90%

Overview

CVE-2026-45411 is a critical-severity vulnerability. It was published on May 13, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24Refaccess.redhat.com/errata/RHSA-2026:50850Refaccess.redhat.com/security/cve/CVE-2026-45411Refbugzilla.redhat.com/show_bug.cgi?id=2477210GitHubgithub.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45411.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-45411?

CVE-2026-45411 is a critical-severity vulnerability. It was published on May 13, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-45411?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-45411?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-45411?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-45411 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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