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    CVE-2026-56348

    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.

    Published:Jun 22, 2026
    Last Modified:Jun 23, 2026
    EPS:Jun 22, 2026
    EPSS Score:0.0025
    CVSS Score:9.1

    Affected Products

    Vendor
    N8n
    Product
    N8n

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-86084 (CVSS 6) — n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the public OIDC log…
    CVE-2026-86085 (CVSS 5.1) — n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the /rest/roles/:slug/assignme…
    CVE-2026-86993 (CVSS 5.9) — n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, a Log Streaming eve…
    CVE-2026-86994 (CVSS 5.3) — n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the /rest/active-wo…
    CVE-2026-86995 (CVSS 5.3) — n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Git node valida…
    CVE-2026-86996 (CVSS 5.3) — n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the workflow setting named Thi…
    CVE-2026-86074 (CVSS 5.9) — n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the Instance AI credential set…
    CVE-2026-85173 (CVSS 5.3) — n8n versions before 2.36.2 contain a missing per-project authorization vulnerability in the Insights API route…
    CVE-2026-85172 (CVSS 5.3) — n8n versions before 2.34.1 contain a server-side request forgery vulnerability in the legacy request helper fu…
    CVE-2026-85171 (CVSS 7.1) — n8n before 1.123.73, 2.35.4, and 2.36.2 contains a credential exposure vulnerability in the Strapi, SeaTable, …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High