n8n-io n8n Snowflake node Execute Query path traversal

Summaryinfo

A vulnerability has been found in n8n-io n8n and classified as critical. Affected by this issue is some unknown functionality of the component Snowflake node. Performing a manipulation of the argument Execute Query results in path traversal. This vulnerability is cataloged as CVE-2026-77080. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in n8n-io n8n (the affected version unknown). This affects an unknown part of the component Snowflake node. The manipulation of the argument Execute Query with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-77080 since 08/20/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/20/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• n8n-io

Name

• n8n

Website

• Product: https://github.com/n8n-io/n8n/

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