CVE-2026-56359
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
50/100
Published: 2026-07-08
Modified: 2026-10-29
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
Active
AT:
None
VC:
Low
VI:
Low
VA:
None
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 (1)
Affected Software (4)
References & Advisories (2)
vendor-advisory
third-party-advisory