{"id":"CVE-2026-110840","title":"n8n before 2.41.4 and 2.42.x before 2.42.1 contains an SQL injection vulnerability in version 1 of the Microsoft SQL node, which substitutes Query field expression values directly into SQL text without parameterisation","summary":"n8n before 2.41.4 and 2.42.x before 2.42.1 contains an SQL injection vulnerability in version 1 of the Microsoft SQL node, which substitutes Query field expression values directly into SQL text without parameterisation. When a workflow b…","severity":"high","cvss":7,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:L","cwe":["CWE-89"],"vendor":"n8n-io","product":"n8n","affected":["n8n < 2.41.4","n8n >= 2.42.0 < 2.42.1"],"published":"2026-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:17:23.960","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110840","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-5qpp-pqww-h7fp","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-sql-injection-via-microsoft-sql-node-query-field","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-15T18:18:03.289728Z"},"cvssSource":"cna","ingestedAt":"2026-10-15T00:02:07.174Z","epss":0.00292,"epssPercentile":0.21624,"slug":"CVE-2026-110840","body":"## Overview\n\nn8n before 2.41.4 and 2.42.x before 2.42.1 contains an SQL injection vulnerability in version 1 of the Microsoft SQL node, which substitutes Query field expression values directly into SQL text without parameterisation. When a workflow binds untrusted input such as webhook fields to the Query field, unauthenticated external callers can execute arbitrary SQL against the connected database with the stored credential's privileges.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":221971,"id":"CVE-2026-110840","ts":1792039696638,"field":"cvss","old":null,"new":"7"},{"seq":221970,"id":"CVE-2026-110840","ts":1792039696638,"field":"severity","old":"none","new":"high"}]}