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OFFICIAL CVE RECORD6.1 Medium

CVE-2026-72769

n8n before 1.123.67 Prototype Pollution via VM Expression Engine

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in the main n8n process (a sandbox escape), leading to a denial of service. Both self-hosted and cloud instances running the VM expression engine are affected.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n8n-io n8n

Default version status: unaffected

  • 0 to < 1.123.67affected
  • 1.123.67unaffected
pkg:npm/n8n

n8n-io n8n

Default version status: unaffected

  • 2.32.0 to < 2.32.1affected
  • 2.32.1unaffected
pkg:npm/n8n

n8n-io n8n

Default version status: unaffected

  • 2.0.0-rc.0 to < 2.31.5affected
  • 2.31.5unaffected
pkg:npm/n8n

References