CVE-2026-85172Network attack vectorHinoki check available

Internal network access via mismatched URL validation

Published Sep 3, 2026 · Updated Sep 3, 2026

SSRF in n8n before 2.34.1 allows remote authenticated users to access internal addresses through Code and Function node workflows. The legacy helpers.request() check validates uri, but request conversion prefers url when both properties exist and dispatches the unchecked value. Workflow-code execution permission is required; successful exploitation sends requests from the server and returns internal responses into the workflow.

CVSS severity5.3
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

SSRF in n8n before 2.34.1 allows remote authenticated users to access internal addresses through Code and Function node workflows. The legacy helpers.request() check validates uri, but request conversion prefers url when both properties exist and dispatches the unchecked value. Workflow-code execution permission is required; successful exploitation sends requests from the server and returns internal responses into the workflow.

The record

CVE
CVE-2026-85172
Published
Sep 3, 2026
Updated
Sep 3, 2026
Vendor
n8n
Product
n8n
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.33.4
  2. Affected versionversion=0 <2.34.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

n8n · n8nversion=0 <2.33.4; version=0 <2.34.1

Published CVSS scores

5.3n8nCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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