VULNERABILITY INTELLIGENCE

CVE-2026-56359

CVSS score5.4 MEDIUM
EPSS probability0.24%
CISA KEVNot currently listed
Published2026-07-08
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth authorization button, executing arbitrary scripts in their browser session with the victim's privileges.

Weakness classification

  • disclosure@vulncheck.com: CWE-79

Primary references