Vulnerability · Published Aug 11, 2026 · Assigned by VulnCheck

CVE-2026-72771n8n before 2.32.1 Credential Restriction Bypass via AI/LLM Nodes

High 7.1

In plain English

A high-severity incorrect authorization in n8n from n8n-io. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.4%top 70.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	n8n	2.32.1	GHSA-64xh-79j6-r5v8
npm	n8n	2.31.5	GHSA-64xh-79j6-r5v8

Affected products (as reported)

Vendor	Product	Versions
n8n-io	n8n	2.32.0 – before 2.32.1
n8n-io	n8n	0 – before 2.31.5

Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N

References

GitHub Security Advisory (GHSA-64xh-79j6-r5v8) vendor-advisory
VulnCheck Advisory: n8n before 2.32.1 Credential Restriction Bypass via AI/LLM Nodes third-party-advisory