CVE-2026-45411: vm2 is an open source vm/sandbox for Node.js

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CRITICAL 9.8REMOTEUPGRADE

CVE-2026-45411 is a critical-severity flaw (CVSS 9.8) affecting vm2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 arb

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-668, CWE-237
Published	2026-05-13
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: vm2 project

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-13 18:16 UTCPublished CVE record published
2026-10-26 14:10 UTCUpdated Record last modified

vm2 project vm2 UPGRADE

Affected: < 3.11.3

Fixed in: 3.11.3

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls vm2

2. UPGRADE to 3.11.3

npm install vm2@">=3.11.3"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45411?

vm2: upgrade to 3.11.3. Exact commands for each OS are on this page.

Is CVE-2026-45411 being exploited?

CVE-2026-45411 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45411 affect?

CVE-2026-45411 affects vm2. Severity is critical (CVSS 9.8). 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 a

How urgent is CVE-2026-45411?

Priority 56/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Node.js vulnerabilities

Related CVEs

CVE-2026-44009 CRITICAL 9.8 UPGRADE vm2 is an open source vm/sandbox for Node.js
CVE-2026-24120 CRITICAL 9.8 UPGRADE vm2 is an open source vm/sandbox for Node.js

References

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