CVE-2026-103256 n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak via preAuthentication Hook
| Reporter | Title | Published | Views | Family All 9 |
|---|---|---|---|---|
 | CVE-2026-103256 | 1 Oct 202610:42 | – | cve |
 | EUVD-2026-90650 | 1 Oct 202610:42 | – | euvd |
 | CVE-2026-103256 | 1 Oct 202610:42 | – | mend |
 | CVE-2026-103256 | 1 Oct 202611:17 | – | nvd |
 | CVE-2026-103256 n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak via preAuthentication Hook | 1 Oct 202610:42 | – | osv_cve |
| MINI-J4G7-F48P-H6P9 | 10 Oct 202614:24 | – | osv_mini |
 | PT-2026-103789 | 1 Oct 202600:00 | – | ptsecurity |
 | CVE-2026-103256: Insufficiently Protected Credentials | 1 Oct 202600:00 | – | rapid7 |
 | CVE-2026-103256 n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak via preAuthentication Hook | 1 Oct 202610:42 | – | vulnrichment |
[
{
"vendor": "n8n-io",
"product": "n8n",
"defaultStatus": "unaffected",
"packageURL": "pkg:npm/n8n",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "semver",
"lessThan": "2.39.6"
},
{
"version": "2.40.0",
"status": "affected",
"versionType": "semver",
"lessThan": "2.40.1"
}
]
}
]Data
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01 Oct 2026 10:42Current
CVSS 47.1
CVSS 3.17.1
EPSS0.00211
SSVC