{"cve":"CVE-2026-56353","nvd":{"published":"2026-07-15T12:18:02.580","modified":"2026-10-24T22:10:00.210","status":"Analyzed","description":"n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases — before 1.123.22, the 2.0.0 through 2.9.2 line, and 2.10.0 — the authentication check on the Chat Trigger webhook endpoint can be circumvented, allowing access without valid credentials. Fixed in 1.123.22, 2.9.3, and 2.10.1.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","score":4.8},"cwes":["CWE-287"],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-jh8h-6c9q-7gmw","https://www.vulncheck.com/advisories/n8n-authentication-bypass-in-chat-trigger-node"],"products":["n8n:n8n"],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-56353","score":0.0033,"percentile":0.25936,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-jh8h-6c9q-7gmw","url":"https://osv.dev/vulnerability/GHSA-jh8h-6c9q-7gmw","summary":"n8n has an Authentication Bypass in its Chat Trigger Node","modified":"2026-07-16T03:56:45.590494521Z","packages":[{"ecosystem":"npm","name":"n8n","purl":"pkg:npm/n8n","ranges":["<1.123.22"],"fixed":["1.123.22"]},{"ecosystem":"npm","name":"n8n","purl":"pkg:npm/n8n","ranges":[">=2.0.0 <2.9.3"],"fixed":["2.9.3"]},{"ecosystem":"npm","name":"n8n","purl":"pkg:npm/n8n","ranges":[">=2.10.0 <2.10.1"],"fixed":["2.10.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}