{"id":"CVE-2026-47698","state":"PUBLISHED","title":"vm2: Sandbox Breakout Using Dangerous Host Proto Mutators","description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6.","publishedAt":"2026-08-17T20:53:09.218Z","updatedAt":"2026-08-19T03:56:02.855Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["patriksimek vm2"],"affected":[{"vendor":"patriksimek","product":"vm2","versions":[{"version":"< 3.11.6","status":"affected"}]}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-cfcw-xp6x-25gj","https://github.com/patriksimek/vm2/commit/a85acb61f81402c6eabf32760aa11272af6d0f9e","https://github.com/patriksimek/vm2/releases/tag/3.11.6"],"weaknesses":["CWE-913"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/47xxx/CVE-2026-47698.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47698","state":"PUBLISHED","datePublished":"2026-08-17T20:53:09.218Z","dateUpdated":"2026-08-19T03:56:02.855Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-19T21:18:20.404Z"},"containers":{"cna":{"title":"vm2: Sandbox Breakout Using Dangerous Host Proto Mutators","descriptions":[{"lang":"en","value":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6."}],"affected":[{"vendor":"patriksimek","product":"vm2","versions":[{"version":"< 3.11.6","status":"affected"}]}],"references":[{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-cfcw-xp6x-25gj","name":"https://github.com/patriksimek/vm2/security/advisories/GHSA-cfcw-xp6x-25gj","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/patriksimek/vm2/commit/a85acb61f81402c6eabf32760aa11272af6d0f9e","name":"https://github.com/patriksimek/vm2/commit/a85acb61f81402c6eabf32760aa11272af6d0f9e","tags":["x_refsource_MISC"]},{"url":"https://github.com/patriksimek/vm2/releases/tag/3.11.6","name":"https://github.com/patriksimek/vm2/releases/tag/3.11.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-913","lang":"en","description":"CWE-913: Improper Control of Dynamically-Managed Code Resources","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-17T20:53:09.218Z"},"source":{"advisory":"GHSA-cfcw-xp6x-25gj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-cfcw-xp6x-25gj","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T00:00:00+00:00","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-47698"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-19T03:56:02.855Z"}}]}}}