CVE-2026-72771

Analyzed Analyzed - Analysis Complete

n8n AI/LLM Nodes Bypass Allowed Domains Allowlist

Publication date: 2026-08-11

Last updated on: 2026-10-29

Assigner: VulnCheck

Description

n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared credentials can redirect requests to attacker-controlled hosts and exfiltrate credential secrets for reuse against underlying services.

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Meta Information

Published

2026-08-11

Last Modified

2026-10-29

Generated

2026-11-08

AI Q&A

2026-08-11

EPSS Evaluated

2026-11-07

NVD

CVE-2026-72771

EUVD

EUVD-2026-56097

Affected Vendors & Products

Vendor	Product	Version / Range
n8n	n8n	2.32.0
n8n	n8n	2.32.0
n8n	n8n	to 2.31.5 (exc)
n8n	n8n	to 2.31.5 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in AI and LLM nodes. Low-privileged users with shared credentials can redirect requests to attacker-controlled hosts and steal credential secrets for reuse against other services.

Detection Guidance

Check n8n version with 'n8n --version' to confirm if it is below 2.32.1 or 2.31.5. Review workflows using AI/LLM nodes for suspicious base or endpoint URLs. Inspect shared credentials with domain restrictions for unauthorized access patterns.

Impact Analysis

Attackers could exploit this to steal shared credential secrets, leading to unauthorized access to underlying services. The impact includes data exfiltration and potential compromise of connected systems.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR and HIPAA requirements for data protection and access controls. Compliance risks include data breaches and unauthorized credential usage.

Mitigation Strategies

Upgrade n8n to version 2.32.1 or later. Restrict workflow editing permissions to trusted users. Audit and limit credential sharing, especially those with domain restrictions. Remove or disable shared credentials not in active use.

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