CVE-2026-92947: vm2: Sandboxed code can read and write host-realm memory via Node's shared Buffer pool
Sandboxed code is able to disclose host memory used by small allocations by Buffer.from, Buffer.concat.
References
- github.com/advisories/GHSA-fcqc-726x-5wfc
- github.com/patriksimek/vm2/commit/4f2508abeb252aa86eb6761c78b3b000248fb089
- github.com/patriksimek/vm2/releases/tag/v3.11.7
- github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc
- nvd.nist.gov/vuln/detail/CVE-2026-92947
- www.vulncheck.com/advisories/vm2-before-3.11.7-memory-disclosure-via-buffer-pool
Code Behaviors & Features
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