CVE-2026-56354

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 50/100
Published: 2026-07-10 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: Passive
AT: None
VC: None
VI: None
VA: None

Description

n8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions can inject malicious scripts or redirect parameters to perform stored XSS attacks or phishing redirects against end users.

Affected Software (8)

VendorProductVersion
n8n n8n 0 < 1.123.24
n8n n8n < 1.123.24
n8n n8n < 1.123.24
n8n n8n 0 < 1.123.24
n8n n8n 2.0.0-rc.0 < 2.10.4
n8n n8n 2.11.0 < 2.12.0
n8n n8n 2.0.0-rc.0 < 2.10.4
n8n n8n 0 < 1.123.24

Bug Bounty Relevance

50 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

5.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

EPSS — Exploitation Probability

0.24%
Raw Score 0.002380
Percentile 14.9%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →