CVE-2026-56353

mediumpriority · track · 0EPSS 0.003 · 26 %ileDEEUNLUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.33% (26th) EPSS

CVSS 4.8 · medium

Is it mine?

11 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases — before 1.123.22, the 2.0.0 through 2.9.2 line, and 2.10.0 — the authentication check on the Chat Trigger webhook endpoint can be circumvented, allowing access without valid credentials. Fixed in 1.123.22, 2.9.3, and 2.10.1.

cvss

Technical severity, 0–10. One row per scoring source.

6.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–6.3

v3.14.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · disclosure@vulncheck.comexploitability 2.2 · impact 2.5

v3.14.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · OSV

v3.14.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · NCSC-NL NL

v4.06.3mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.06.3mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com

v4.01.7lowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287US

affected products (11)

Products and version ranges known to be affected.

n8n n8nall versionscert_bundDEcpe:/a:n8n:n8n:-
n8n n8n0 → 1.123.22enisa_euvdEU
n8n n8n2.0.0 → 2.9.3enisa_euvdEU
n8n n8n2.10.0 → 2.10.1enisa_euvdEU
n8n n8n≤ vers:unknown/*ncsc_nlNL
n8n n8n< 1.123.22nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n2.0.0 → 2.9.3nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
n8n n8n= 2.10.0nvdUScpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
npm n8n< 1.123.22osvUSpkg:npm/n8n
npm n8n2.0.0 → 2.9.3osvUSpkg:npm/n8n
npm n8n2.10.0 → 2.10.1osvUSpkg:npm/n8n

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0248Kwetsbaarheden verholpen in n8n workflow automation platformNL2026-07-17csaf · ncsc_nlNL
n8n heeft meerdere kwetsbaarheden verholpen in het n8n workflow automation platform, specifiek in versies voor 2.10.1, 2.9.3, 1.123.22 en andere gerelateerde releases.
WID-SEC-W-2026-0532n8n: Mehrere SchwachstellenDeutsch2026-02-25csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in n8n ausnutzen, um beliebigen Programmcode auszuführen, um Sicherheitsvorkehrungen zu umgehen, um Daten zu manipulieren, um einen SQL-Injection Angriff durchzuführen, und um einen Cross-Site Scripting Angriff durchzuführen.
GHSA-jh8h-6c9q-7gmwn8n has an Authentication Bypass in its Chat Trigger Node2026-02-26ghsa · osvUS
## Impact When the Chat Trigger node is configured with n8n User Auth authentication, the authentication check could be circumvented. - This issue requires the Chat Trigger node to be configured with n8n User Auth authentication (non-default). ## Patches The issue has been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate the vulnerability. ## Workarounds If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Limit workflow creation and editing permissions to fully trusted users only. - Use a different authentication method for the Chat Trigger node, or restrict network access to the webhook endpoint to trusted origins. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl nvd osv NVD CVE.org MITRE

published 2026-07-15modified 2026-10-24

references (6)

External citations — patches, advisories, analysis.

scry

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