n8n before 1.123.69 Arbitrary File Read and Write via Snowflake
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an arbitrary file read and write vulnerability in the Snowflake node, which passes free-form Execute Query input, including client-side commands, directly to the Snowflake SDK without applying n8n's file-access restrictions. An authenticated user with usable Snowflake credentials can upload a local file from the n8n host or overwrite an existing file with a staged one.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| n8n | n8n | before 1.123.69 | 1.123.69 | Patch available | CNA |
| n8n | n8n | 2.34.0 to before 2.34.1 | 2.34.1 | Patch available | CNA |
| n8n | n8n | 2.0.0 to before 2.33.4 | 2.33.4 | Patch available | CNA |
Remediation
- Fix · CNA n8n (n8n-io) Fixed in 1.123.69
- Fix · CNA n8n (n8n-io) Fixed in 2.34.1
- Fix · CNA n8n (n8n-io) Fixed in 2.33.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
n8n-io n8n 2.33.4, 2.34.1
17 records Highest priority Priority MEDIUM 2 MEDIUM, 15 LOW
Other records, highest priority first
- TI-2026-53821 n8n before 2.34.1 Remote Code Execution via Path TraversalPriority MEDIUM 41
- TI-2026-53832 n8n before 2.34.1 Authorization Bypass via Custom Role DeletionPriority LOW 39
- TI-2026-53825 n8n before 1.123.69 Stored XSS via Form Completion PagePriority LOW 38
- Release ·
n8n-io n8n 1.123.69
13 records Highest priority Priority MEDIUM 1 MEDIUM, 12 LOW
Other records, highest priority first
- TI-2026-53825 n8n before 1.123.69 Stored XSS via Form Completion PagePriority LOW 38
- TI-2026-53837 n8n before 1.123.69 Remote Code Execution via Git Node Configuration ValuesPriority LOW 37
- TI-2026-53828 n8n before 1.123.69 Expression Injection via Resource LocatorPriority LOW 37
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77080
- 2026-10-03 Alias added: GHSA-f4h2-4c4x-g885
References
More N8n vulnerabilities
- 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
Sources
- CVE-2026-77080 · CVE Program
- CVE-2026-77080 · NVD
- FIRST EPSS
- GHSA-f4h2-4c4x-g885 · GitHub Advisory Database · CC BY 4.0
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