{"id":"CVE-2026-103248","title":"n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a filter injection vulnerability in the Supabase node's Filters (String) mode that fails to escape field values","summary":"n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a filter injection vulnerability in the Supabase node's Filters (String) mode that fails to escape field values. Attackers can inject filter ex…","severity":"critical","cvss":9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-89"],"vendor":"n8n-io","product":"n8n","affected":["n8n < 1.123.80","n8n >= 2.0.0 < 2.39.6","n8n >= 2.40.0 < 2.40.1"],"published":"2026-10-01","updated":"2026-10-01","sourceUpdated":"2026-10-01T11:17:18.380","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103248","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-xrqg-3xcp-h45x","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/n8n-before-1.123.80-2.39.6-and-2.40.1-postgrest-filter-injection-via-supabase","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-01T11:42:53.799Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-01T13:26:35.169634Z"},"slug":"CVE-2026-103248","body":"## Overview\n\nn8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a filter injection vulnerability in the Supabase node's Filters (String) mode that fails to escape field values. Attackers can inject filter expressions from untrusted input to read all table rows, update all records, or delete entire tables in a single request.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":49.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}