CVE-2026-21877 Details
n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full compromise and can impact both self-hosted and n8n Cloud instances. This issue is fixed in version 1.121.3. Administrators can reduce exposure by disabling the Git node and limiting access for untrusted users, but upgrading to the latest version is recommended.
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Exploit prediction scoring system (EPSS) score for CVE-2026-21877
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%).
14.57 Probability of exploitation activity being observed over the next 30 days (94th percentile)
CVSS score for CVE-2026-21877
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.
9.9 Critical
Products affected by CVE-2026-21877
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.
High
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CVE-2026-21877 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 2,857 38.56%
DE 923 12.46%
SG 297 4.01%
FR 287 3.87%
IN 268 3.62%
VN 257 3.47%
RU 240 3.24%
GB 210 2.83%
BR 172 2.32%
AU 155 2.09%

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CVE-2026-21877 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 5,625 92.94%
Telecommunications 361 5.96%
Education 18 0.30%
Media/Entertainment 7 0.12%
Retail 7 0.12%
Government/Politics 5 0.08%
Consumer Goods 5 0.08%
Engineering 4 0.07%
Business Services 3 0.05%
Insurance 3 0.05%

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