{"id":"CVE-2026-56359","title":"n8n - Cross-Site Scripting in Credential Management OAuth2 Authorization URL","summary":"n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft maliciou…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"n8n","product":"n8n","affected":["n8n >= 2.7.0 < 2.8.0","n8n < 2.6.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-07-09T13:35:54.521387Z"},"published":"2026-07-08","updated":"2026-10-29","sourceUpdated":"2026-10-29T21:15:48.392Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56359","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-364x-8g5j-x2pr","label":"GitHub Security Advisory (GHSA-364x-8g5j-x2pr)"},{"url":"https://www.vulncheck.com/advisories/n8n-cross-site-scripting-in-credential-management-oauth2-authorization-url","label":"VulnCheck Advisory: n8n - Cross-Site Scripting in Credential Management OAuth2 Authorization URL"}],"tags":["cve.org"],"epss":0.00243,"epssPercentile":0.15496,"ingestedAt":"2026-11-03T08:39:35.557Z","slug":"CVE-2026-56359","body":"## Overview\n\nn8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth authorization button, executing arbitrary scripts in their browser session with the victim's privileges.\n\n## Affected\n\n- `n8n >= 2.7.0 < 2.8.0`\n- `n8n < 2.6.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}