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Servers and applications

CVE-2026-110842

n8n before 2.41.4 and 2.42.1 Prototype Pollution via MCP Workflow-Validation Interpreter

Severity
High 7.7
Published
14 Oct 2026
Last changed
15 Oct 2026
Added to UpHeron
3 Nov 2026
Fixed in
2.41.4, 2.42.1
Sources
CVE Program

Affected software

SoftwareAffected versions
n8nServers and applications · cna:n8n-io|n8n
  • Every version before 2.41.4
  • From 2.42.0 before 2.42.1

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-110842