CVE-2026-56359

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

5.4 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

July 08, 2026

Last Modified

July 08, 2026

CWE ID

CWE-79

Source

NVD

Vendor

n8n

Product

n8n

External References

https://github.com/n8n-io/n8n/security/advisories/GHSA-364x-8g5j-x2pr
https://www.vulncheck.com/advisories/n8n-cross-site-scripting-in-credential-management-oauth2-authorization-url

CVE-2026-56359

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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