SB20260423157 - Improper access control in n8n

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Main Vulnerability Database SB20260423157

SB20260423157 - Improper access control in n8n

Published: April 23, 2026

Security Bulletin ID SB20260423157
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: N/A)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to improper access control in dynamic-node-parameters endpoints when handling requests with a supplied credential reference. A remote user can send a specially crafted request with a foreign credential ID and an attacker-controlled destination URL to disclose sensitive information.

The issue affects nodes that resolve credentials dynamically through these endpoints.


Remediation

Install update from vendor's website.

References