CVE-2026-56776 Details
n8n before 1.123.55, 2.25.7, and 2.26.2 contains an authorization bypass in the POST /workflows/{workflowId}/test-runs/new endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a workflow can trigger a real evaluation test run, causing the workflow to execute via the internal workflow runner and resulting in unintended outbound API calls, data mutations, or other side effects in connected downstream systems. The issue primarily affects instances using the Evaluations feature where RBAC project roles grant workflow:read without workflow:execute.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-56776
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%).
0.16 Probability of exploitation activity being observed over the next 30 days (6th percentile)
CVSS score for CVE-2026-56776
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.
7.4 High
Products affected by CVE-2026-56776
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-2026-56776 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 12,472 31.12%
DE 7,031 17.54%
FR 1,800 4.49%
GB 1,571 3.92%
SG 1,554 3.88%
VN 1,328 3.31%
IN 1,262 3.15%
CN 1,196 2.98%
BR 1,037 2.59%
RU 1,008 2.52%

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CVE-2026-56776 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 29,378 91.54%
Telecommunications 2,220 6.92%
Education 216 0.67%
Media/Entertainment 50 0.16%
Business Services 46 0.14%
Retail 39 0.12%
Government/Politics 29 0.09%
Engineering 23 0.07%
Consumer Goods 15 0.05%
Energy/Resources 15 0.05%

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