CVE-2026-56353Network attack vector

Unauthenticated webhook access via bypassed authentication check

Published Jul 15, 2026 · Updated Jul 15, 2026

Authentication bypass in n8n's Chat Trigger node allows remote attackers to access its webhook without valid credentials. The webhook endpoint's authentication check can be circumvented when the node uses n8n User Auth; n8n has not disclosed the request property or code path that causes the check to fail. Exposure requires that non-default authentication mode, and successful exploitation grants unauthenticated access to the configured Chat Trigger webhook.

CVSS severity6.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in n8n's Chat Trigger node allows remote attackers to access its webhook without valid credentials. The webhook endpoint's authentication check can be circumvented when the node uses n8n User Auth; n8n has not disclosed the request property or code path that causes the check to fail. Exposure requires that non-default authentication mode, and successful exploitation grants unauthenticated access to the configured Chat Trigger webhook.

The record

CVE
CVE-2026-56353
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
n8n
Product
n8n
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 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 <1.123.22
  2. Affected versionversion=2.0.0 <2.9.3
  3. Affected versionversion=2.10.0 <2.10.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

n8n · n8nversion=0 <1.123.22; version=2.0.0 <2.9.3; version=2.10.0 <2.10.1

Published CVSS scores

4.8VulnCheckCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
6.3n8nCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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