CVE-2026-56356 Details
n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 (fixed in 1.123.27, 2.13.3, and 2.14.1). An authenticated user with permission to create or modify workflows can inject JavaScript that bypasses sanitization, resulting in stored XSS against any user who visits the public chat page.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-56356
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.18 Probability of exploitation activity being observed over the next 30 days (8th percentile)
CVSS score for CVE-2026-56356
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
5.4 Medium
Products affected by CVE-2026-56356
N8n 0.183.0
N8n 1.100.1
N8n 1.101.1
N8n 1.101.2
N8n 1.102.3
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-56356 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 17,359 31.33%
DE 9,652 17.42%
FR 2,519 4.55%
GB 2,101 3.79%
SG 2,099 3.79%
VN 1,926 3.48%
IN 1,769 3.19%
CN 1,717 3.10%
RU 1,438 2.60%
BR 1,420 2.56%

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CVE-2026-56356 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 40,618 91.39%
Telecommunications 3,175 7.14%
Education 275 0.62%
Retail 68 0.15%
Media/Entertainment 62 0.14%
Business Services 60 0.13%
Government/Politics 37 0.08%
Engineering 28 0.06%
Consumer Goods 22 0.05%
Manufacturing 18 0.04%

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