CVE•Published 2026-06-22•Modified 2026-06-24•1 article on news•5 live references•NVD data
CVE-2026-56348N8n · N8n
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
EPSS percentile
16
Exploit Prediction Scoring System · top 84% of all CVEs
Weaknesses (CWE)
Description
n8n before 2.20.0 contains a credential exfiltration vulnerability in the POST /rest/dynamic-node-parameters/options endpoint that allows authenticated users to bypass Allowed HTTP Request Domains restrictions. Attackers with credential access can cause the n8n server to issue HTTP requests with credentials to unauthorized hosts, exfiltrating sensitive authentication data.
Timeline
Published 2026-06-22
Modified 2026-06-24
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-56348Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"N8n N8n"All exposed N8n N8n instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"N8n"HTTP body or banner mentions "N8n" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-56348Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-56348Censys host search filtered to this CVE id.
grep.app
CVE-2026-56348Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-56348GitHub code search for direct mentions.
Google dork
"CVE-2026-56348" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.