CVE-2026-77080
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n8n-io | n8n | 0 < 1.123.69 | affected |
| n8n-io | n8n | 1.123.69 | unaffected |
| n8n-io | n8n | 0 < 2.34.1 | affected |
| n8n-io | n8n | 2.34.1 | unaffected |
| n8n-io | n8n | 0 < 2.33.4 | affected |
| n8n-io | n8n | 2.33.4 | unaffected |
Weaknesses
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-r4j2-j3wm-q689
- https://www.vulncheck.com/advisories/n8n-before-arbitrary-file-read-and-write-via-snowflake
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