Allowlist Bypass in n8n AI and LLM Nodes by n8n.io
CVE-2026-72771

7.1HIGH

Key Information:

Vendor

N8n-io

Status
N8n
Vendor
CVE Published:
11 August 2026

What is CVE-2026-72771?

Versions prior to 2.32.1 of n8n have a vulnerability that fails to effectively enforce the Allowed HTTP Request Domains allowlist. This oversight affects multiple AI and LLM nodes, allowing low-privileged workflow editors who have use-only access to shared credentials to redirect requests to unauthorized hosts. This misconfiguration can lead to the exfiltration of sensitive credential secrets, which could potentially be reused against the underlying services.

Affected Version(s)

n8n 0 < 2.32.1

n8n 0 < 2.31.5

n8n 2.32.1

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-64...
vendor-advisory
https://www.vulncheck.com/advisories/n8n-before-credentia...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.