{"id":"CVE-2026-103256","published":"2026-10-01T11:17:19.913","lastModified":"2026-10-01T14:17:22.170","description":"n8n versions before 2.39.6 and 2.40.0 before 2.40.1 contain a credentials leak vulnerability in the Wekan and Baserow username-and-password credentials that sends unencrypted passwords to unvalidated hosts. Attackers with credential update permissions can modify the host field to receive account passwords at arbitrary hosts, bypassing domain validation controls.","cvssScore":7.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N","cwes":["CWE-522"],"vendors":[],"products":[],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-gx6g-2hm7-c4xf","tags":[]},{"url":"https://www.vulncheck.com/advisories/n8n-before-2.39.6-and-2.40-x-before-2.40.1-credentials-leak-via-preauthentication-hook","tags":[]}],"exploitRefs":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-gx6g-2hm7-c4xf","tags":[]}],"hasPoc":true,"ai":null}