{"id":"GHSA-m7jc-p4hf-xhwq","summary":"Duplicate Advisory: Legacy Expression Evaluator Sanitizer Bypass Leads to Authenticated Code Execution","details":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-pm35-fqvh-cq5g. This link is maintained to preserve external references.\n\n## Original Description\nn8n 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in n8n 1.123.64, 2.29.8, and 2.30.1.","modified":"2026-07-22T22:16:06.783951908Z","published":"2026-07-22T12:32:17Z","withdrawn":"2026-07-22T22:01:27Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-07-22T22:01:27Z","nvd_published_at":"2026-07-22T12:18:19Z","cwe_ids":["CWE-917"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-pm35-fqvh-cq5g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65591"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/n8n-before-sanitizer-bypass-remote-code-execution"}],"affected":[{"package":{"name":"n8n","ecosystem":"npm","purl":"pkg:npm/n8n"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 1.123.64","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-m7jc-p4hf-xhwq/GHSA-m7jc-p4hf-xhwq.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}