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VulnerabilityPublished Updated

CVE-2026-92942: patriksimek vm2 · Uncontrolled Resource Consumption

Affects patriksimek vm2Source CVE Database V5

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Not known to be exploited · CVSS 8.7 High : upgrade to 3.11.7 soon.

Data as of 1 Nov 2026, 22:58 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.11.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

What to do

Upgrade patriksimek vm2 to 3.11.7.

Affected software

ProductAffectedFixed in
patriksimekvm2Affected
  • <3.11.7
Fixed in
  • 3.11.7
npmvm2pkg:npm/vm2Other threatsAffected
  • <3.11.7
Fixed in
  • 3.11.7

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in vm2 version 3.11.7. Users should upgrade to version 3.11.7 or later to ensure the VM timeout is properly enforced on all code execution paths, including FinalizationRegistry cleanup callbacks. Until upgraded, applications remain vulnerable to denial of service via this mechanism.

Description

CVE-2026-92942 is a high-severity vulnerability in the patriksimek vm2 library versions prior to 3.11.7. The vulnerability arises because the VM timeout option does not apply to code executed outside the synchronous VM#run() call, allowing sandboxed code to register FinalizationRegistry cleanup callbacks that can execute unbounded busy loops after the VM run returns. This can block the host event loop indefinitely, causing a denial of service. The invocation timing depends on the V8 garbage collector behavior.

References

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