Read the docs
TI-2026-82158 Aliases CVE-2026-118644GHSA-cfc8-9wgc-86cf

n8n Credential Theft via Error-Workflow Context Inheritance

Priority LOW 23CWE-266Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
Privilege escalation
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266.

Summary

n8n before 2.41.5 and 2.42.x before 2.42.2 passes a failed workflow's full execution context, including the identity of the user who started the run, to the configured error workflow. A project editor can set a colleague's workflow settings.errorWorkflow to an error workflow they own, inherit the colleague's identity when that workflow fails, and resolve the colleague's per-user dynamic credential secrets. The weakness is CWE-266 Incorrect Privilege Assignment, scored 5.1 (MEDIUM) under CVSS 4.0.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

n8n before 2.41.5 and 2.42.x before 2.42.2 passes a failed workflow's full execution context, including the identity of the user who started the run, to the configured error workflow. A project editor can set a colleague's workflow settings.errorWorkflow to an error workflow they own, inherit the colleague's identity when that workflow fails, and resolve the colleague's per-user dynamic credential secrets.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00202 10th percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 2.42.2, 2.41.5

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
n8nn8n2.42.0 to before 2.42.22.42.2Patch availableCNA
n8nn8nbefore 2.41.52.41.5Patch availableCNA
  • n8n Vendorn8n Affected 2.42.0 to before 2.42.2 Fixed in 2.42.2 Patch available CNA
  • n8n Vendorn8n Affected before 2.41.5 Fixed in 2.41.5 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 installations before 2.41.5 to 2.41.5, and installations from 2.42.0 before 2.42.2 to 2.42.2.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA n8n (n8n-io) Fixed in 2.42.2
  • Fix · CNA n8n (n8n-io) Fixed in 2.41.5

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-118644
  2. 2026-10-28 Alias added: GHSA-cfc8-9wgc-86cf
  3. 2026-11-03 CISA SSVC decision points changed

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-2026-82991 Code execution in n8n via deprecated Function nodes CVSS 4.0HIGH 8.7
  • TI-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… 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