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TI-2026-50982 Aliases CVE-2026-72749GHSA-vg34-hpfq-m5qm

n8n before 1.123.67 Prototype Pollution via Edit Fields

Priority LOW 32CWE-1321Published · Updated

Key facts

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

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

Summary

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the Edit Fields (Set) node. The node assigns output fields via a dot-notation path setter without restricting the field name, allowing an authenticated user to name a field after an inherited built-in method path and corrupt a shared global in the main Node.js process. Because that global is used on the request-authentication path, the instance then fails every authenticated request, causing an instance-wide denial of service for all users until the process is restarted.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00573 47th percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 1.123.67, 2.32.1, 2.31.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
n8nn8nbefore 1.123.671.123.67Patch availableCNA
n8nn8n2.32.0 to before 2.32.12.32.1Patch availableCNA
n8nn8n2.0.0-rc.0 to before 2.31.52.31.5Patch availableCNA
  • n8n Vendorn8n Affected before 1.123.67 Fixed in 1.123.67 Patch available CNA
  • n8n Vendorn8n Affected 2.32.0 to before 2.32.1 Fixed in 2.32.1 Patch available CNA
  • n8n Vendorn8n Affected 2.0.0-rc.0 to before 2.31.5 Fixed in 2.31.5 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*before 1.123.67; 2.31.0 to before 2.31.5Vulnerablen8n
cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:*:node.js:*:*2.32.0Vulnerablen8n
  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* Versions before 1.123.67; 2.31.0 to before 2.31.5 Vulnerable ·n8n
  • cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:*:node.js:*:* Versions 2.32.0 Vulnerable ·n8n

Remediation

  • Fix · CNA n8n (n8n-io) Fixed in 1.123.67
  • Fix · CNA n8n (n8n-io) Fixed in 2.32.1
  • Fix · CNA n8n (n8n-io) Fixed in 2.31.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    n8n-io n8n 2.31.5, 2.32.1

    16 records Highest priority Priority MEDIUM 4 MEDIUM, 12 LOW

    Other records, highest priority first

    • TI-2026-50992 n8n before 1.123.67 Arbitrary File Read via Send Email NodePriority MEDIUM 42
    • TI-2026-50998 n8n before 2.32.1 Authentication Bypass via Token ExchangePriority MEDIUM 41
    • TI-2026-50993 n8n before 1.123.67 Remote Code Execution via Git nodePriority MEDIUM 41
    Show all 16 records →
  • Release ·

    n8n-io n8n 1.123.67

    11 records Highest priority Priority MEDIUM 2 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2026-50992 n8n before 1.123.67 Arbitrary File Read via Send Email NodePriority MEDIUM 42
    • TI-2026-50993 n8n before 1.123.67 Remote Code Execution via Git nodePriority MEDIUM 41
    • TI-2026-50988 n8n before 1.123.67 Arbitrary File Write via Edit Image NodePriority LOW 36
    Show all 11 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-72749
  2. 2026-10-03 Alias added: GHSA-vg34-hpfq-m5qm
  3. 2026-10-29 Affected versions changed · CNA

References

Advisory 1

  • 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 178 →

Sources

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