What’s Vulnerable › Vulnerabilities

CVE-2026-92947: vm2 before 3.11.7 Memory Disclosure via Buffer Pool

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-09-17
• Weakness: CWE-200

Description

vm2 before 3.11.7 exposes Node's shared Buffer pool to sandboxed code, allowing disclosure of host memory used by Buffer.from, Buffer.concat, and related allocations. Sandboxed code can read and write to host-realm buffers by acquiring ArrayBuffers from small allocations, leading to sensitive data exposure and potential denial-of-service.

Affected products

• patriksimek vm2: before 3.11.7 — fixed in 3.11.7

How to fix

Upgrade to a fixed version: patriksimek vm2 3.11.7. Check the vendor advisory for mitigations.

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc
• https://www.vulncheck.com/advisories/vm2-before-3.11.7-memory-disclosure-via-buffer-pool
• https://github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc

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