{"id":"CVE-2026-65591","revision":"c356d9170953429cbfaabf1e88e539bb","records":[{"revision":"c356d9170953429cbfaabf1e88e539bb","observedAt":"2026-10-25T15:18:45.851+00:00","statement":{"source":"nvd","id":"CVE-2026-65591","aliases":[],"title":"n8n contains a sanitizer bypass vulnerability in the legacy expression evaluator's computed-member handler. An authenticated user with workflow create or modify permissions can craft a malicious expression to bypass the sanitizer and achiev…","description":"n8n contains a sanitizer bypass vulnerability in the legacy expression evaluator's computed-member handler. An authenticated user with workflow create or modify permissions can craft a malicious expression to bypass the sanitizer and achieve host-level code execution as the n8n process. The legacy expression engine is the default in affected versions. Fixed in n8n 1.123.64, 2.29.8, and 2.30.1.","state":0,"publishedAt":"2026-07-22T12:18:19.117+00:00","modifiedAt":"2026-10-24T17:10:00.22+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.9,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-pm35-fqvh-cq5g","https://www.vulncheck.com/advisories/n8n-before-sanitizer-bypass-remote-code-execution"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65591","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-917"],"productCriteria":["cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*","cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*","cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:*","cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:*"],"sourceDates":{"published":"2026-07-22T12:18:19.117","lastModified":"2026-10-24T17:10:00.220"},"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-2026-65591","identifiers":["CVE-2026-65591"]},"retained":false,"historicalAffected":[]}],"coverage":[]}