CVE-2026-72771
n8n before 2.32.1 Credential Restriction Bypass via AI/LLM Nodes
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.
INFO
Published Date :
Aug. 11, 2026, 1:19 p.m.
Last Modified :
Oct. 24, 2026, 3:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update n8n to version 2.32.1 or newer.
- Review and restrict HTTP request domains.
- Monitor for suspicious outbound network traffic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72771.
| URL | Resource |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-64xh-79j6-r5v8 | Mitigation Vendor Advisory |
| https://www.vulncheck.com/advisories/n8n-before-credential-restriction-bypass-via-ai-llm-nodes | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72771 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72771
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72771 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72771 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Changed Translation Title: n8n de n8n-io, Description: Las versiones de n8n anteriores a la 2.32.1 no logran hacer cumplir la lista de permitidos de Dominios de Solicitudes HTTP en múltiples nodos de IA y LLM cuando se configuran URLs base o de punto final proporcionadas por el usuario. Editores de flujo de trabajo con bajos privilegios y acceso de solo uso a credenciales compartidas pueden redirigir solicitudes a hosts controlados por el atacante y exfiltrar secretos de credenciales para su reutilización contra servicios subyacentes. Title: n8n de n8n-io, Description: Las versiones de n8n anteriores a la 2.32.1 no logran hacer cumplir la lista de permitidos de Dominios de Solicitudes HTTP en múltiples nodos de IA y LLM cuando se configuran URLs base o de punto final proporcionadas por el usuario. Editores de flujo de trabajo con bajos privilegios y acceso de solo uso a credenciales compartidas pueden redirigir solicitudes a hosts controlados por el atacante y exfiltrar secretos de credenciales para su reutilización contra servicios subyacentes. -
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: n8n de n8n-io, Description: Las versiones de n8n anteriores a la 2.32.1 no logran hacer cumplir la lista de permitidos de Dominios de Solicitudes HTTP en múltiples nodos de IA y LLM cuando se configuran URLs base o de punto final proporcionadas por el usuario. Editores de flujo de trabajo con bajos privilegios y acceso de solo uso a credenciales compartidas pueden redirigir solicitudes a hosts controlados por el atacante y exfiltrar secretos de credenciales para su reutilización contra servicios subyacentes. -
Initial Analysis by [email protected]
Aug. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:community:node.js:*:* *cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:enterprise:node.js:*:* *cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:* versions up to (excluding) 2.31.5 *cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:* versions up to (excluding) 2.31.5 Added Reference Type VulnCheck: https://github.com/n8n-io/n8n/security/advisories/GHSA-64xh-79j6-r5v8 Types: Mitigation, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/n8n-before-credential-restriction-bypass-via-ai-llm-nodes Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 14, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-72771', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-14T19:49:23.438587Z'} -
New CVE Received by [email protected]
Aug. 11, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n8n-io', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.32.1', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.32.1', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}, {'vendor': 'n8n-io', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.31.5', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.31.5', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/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:X Added CWE CWE-863 Added Reference https://github.com/n8n-io/n8n/security/advisories/GHSA-64xh-79j6-r5v8 Added Reference https://www.vulncheck.com/advisories/n8n-before-credential-restriction-bypass-via-ai-llm-nodes