Medium severity5.4NVD Advisory· Published Jul 8, 2026· Updated Jul 9, 2026
CVE-2026-56359
CVE-2026-56359
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.
Affected products
1Patches
Vulnerability mechanics
References
2- github.com/n8n-io/n8n/security/advisories/GHSA-364x-8g5j-x2prnvdMitigationVendor Advisory
- www.vulncheck.com/advisories/n8n-cross-site-scripting-in-credential-management-oauth2-authorization-urlnvdThird Party Advisory
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