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TI-2026-82991 Aliases CVE-2026-119408GHSA-48fh-2c4x-8wcm

Code execution in n8n via deprecated Function nodes

Priority HIGH 73CWE-653Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

n8n before 2.42.6, from 2.43.0 before 2.43.3, and from 3.0.0 before 3.0.1 is affected. Deprecated Function, Function Item and LangChain Code nodes run outside task runner isolation (CWE-653). An authenticated user who can create, modify or import workflows that use these hidden node types can run JavaScript in the n8n main process.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

n8n before 2.42.6, 2.43.x before 2.43.3, and 3.x before 3.0.1 contains a remote code execution vulnerability via deprecated Function, Function Item, and LangChain Code nodes running outside task runner isolation. Authenticated users who can create, modify, or import workflows naming these hidden node types can execute JavaScript in the n8n main process.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00627 50th percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 2.43.3, 2.42.6, 3.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
n8nn8n2.43.0 to before 2.43.32.43.3Patch availableCNA
n8nn8nbefore 2.42.62.42.6Patch availableCNA
n8nn8n3.0.0 to before 3.0.13.0.1Patch availableCNA
  • n8n Vendorn8n Affected 2.43.0 to before 2.43.3 Fixed in 2.43.3 Patch available CNA
  • n8n Vendorn8n Affected before 2.42.6 Fixed in 2.42.6 Patch available CNA
  • n8n Vendorn8n Affected 3.0.0 to before 3.0.1 Fixed in 3.0.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*——n8n
  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* Versions — — ·n8n

Remediation

Upgrade n8n to 2.42.6, 2.43.3 or 3.0.1, matching the release line in use.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA n8n (n8n-io) Fixed in 2.43.3
  • Fix · CNA n8n (n8n-io) Fixed in 2.42.6
  • Fix · CNA n8n (n8n-io) Fixed in 3.0.1

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-119408
  2. 2026-10-30 Alias added: GHSA-48fh-2c4x-8wcm
  3. 2026-11-01 Priority changed: MEDIUM → LOW
  4. 2026-11-05 CISA SSVC decision points changed
  5. 2026-11-05 Priority changed: LOW → HIGH

References

Patch 1

Advisory 2

Other 5

  • TI-2025-42131 n8n Vulnerable to Remote Code Execution via Expression Injection KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-17560 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling CVSS 3.1CRITICAL 10.0
  • TI-2026-01167 Authenticated users can bypass the Expression sandbox mechanism to achieve full remote… CVSS 3.1CRITICAL 9.9
  • TI-2026-00644 Sandbox escape in n8n Python task runner allows for arbitrary code execution on the underlying host. CVSS 3.1CRITICAL 9.9
  • TI-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… CVSS 3.1HIGH 8.8
  • TI-2023-12275 The n8n package 0.218.0 for Node.js allows Escalation of Privileges. CVSS 3.1HIGH 8.8
See all 233 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences