{"id":"CVE-2026-92947","title":"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","summary":"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 A…","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L","cwe":["CWE-200"],"vendor":"patriksimek","product":"vm2","affected":["vm2 < 3.11.7"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T16:18:34.667","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92947","references":[{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/vm2-before-3.11.7-memory-disclosure-via-buffer-pool","label":"disclosure@vulncheck.com"},{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-17T15:46:48.210651Z"},"ingestedAt":"2026-09-17T14:19:30.987Z","epss":0.00432,"epssPercentile":0.36911,"slug":"CVE-2026-92947","body":"## Overview\n\nvm2 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":67,"depthScoreParts":{"impact":55,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":206270,"id":"CVE-2026-92947","ts":1789662166282,"field":"exploit_available","old":"false","new":"true"}]}