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Multiple Vulnerabilities in n8n

Indian – Computer Emergency Response Team (https://www.cert-in.org.in)

Severity Rating: CRITICAL

Software Affected

n8n versions prior to 1.123.32, 2.17.4, and 2.18.1

n8n versions prior to 1.123.43, 2.20.7, and 2.22.1

Overview

Multiple vulnerabilities have been reported in n8n which may allow an attacker to execute arbitrary code, gain unauthorized access, disclose sensitive information, perform privilege escalation, or compromise the targeted system.

Target Audience:

All end-user organizations responsible for deploying, securing, and maintaining n8n.

Risk Assessment:

High risk of remote code execution, unauthorized access, privilege escalation, and sensitive information disclosure.

Impact Assessment:

Potential for unauthorized access, full system takeover, and exposure of sensitive data.

Description

n8n is a workflow automation platform that allows you to connect different apps, APIs, and services to automate tasks using a visual, node-based workflow builder. It is a low-code, open-source tool commonly used to automate business processes and integrate software systems.

These vulnerabilities exist in n8n due to improper access control, insecure webhook handling, and insufficient input validations.

Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code, gain unauthorized access, disclose sensitive information, perform privilege escalation, or compromise the targeted system.

Solution

Apply appropriate updates as mentioned:

https://github.com/n8n-io/n8n/security/advisories/GHSA-q5f4-99jv-pgg5

https://github.com/n8n-io/n8n/security/advisories/GHSA-hqr4-h3xv-9m3r

https://github.com/n8n-io/n8n/security/advisories/GHSA-wrwr-h859-xh2r

https://github.com/n8n-io/n8n/security/advisories/GHSA-c8xv-5998-g76h

https://github.com/n8n-io/n8n/security/advisories/GHSA-57g9-58c2-xjg3

Vendor Information

n8n

https://github.com/n8n-io/n8n/security/advisories/GHSA-q5f4-99jv-pgg5

https://github.com/n8n-io/n8n/security/advisories/GHSA-hqr4-h3xv-9m3r

https://github.com/n8n-io/n8n/security/advisories/GHSA-wrwr-h859-xh2r

https://github.com/n8n-io/n8n/security/advisories/GHSA-c8xv-5998-g76h

https://github.com/n8n-io/n8n/security/advisories/GHSA-57g9-58c2-xjg3

References

n8n

https://github.com/n8n-io/n8n/security/advisories/GHSA-q5f4-99jv-pgg5

https://github.com/n8n-io/n8n/security/advisories/GHSA-hqr4-h3xv-9m3r

https://github.com/n8n-io/n8n/security/advisories/GHSA-wrwr-h859-xh2r

https://github.com/n8n-io/n8n/security/advisories/GHSA-c8xv-5998-g76h

https://github.com/n8n-io/n8n/security/advisories/GHSA-57g9-58c2-xjg3

CVE Name

CVE-2026-42231

CVE-2026-42232

CVE-2026-44791

CVE-2026-44789

CVE-2026-44790

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Thanks and Regards,

CERT-In

Incident Response Help Desk

e-mail: incident@cert-in.org.in

Phone: +91-11-22902657

Toll Free Number: 1800-11-4949

Toll Free Fax : 1800-11-6969

Web: http://www.cert-in.org.in

PGP Fingerprint: A768 083E 4475 5725 B81A A379 2156 C0C0 B620 D0B4

PGP Key information:

https://www.cert-in.org.in/s2cMainServlet?pageid=CONTACTUS

Postal address:

Indian Computer Emergency Response Team (CERT-In)

Ministry of Electronics and Information Technology

Government of India

Electronics Niketan

6, C.G.O. Complex

New Delhi-110 003

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