CVE-2026-77080

High

Description

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.

SeverityHigh

CVSS8.8

Exploit probability—

Product

N8n

PublishedAug 20, 2026

First seenAug 20, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

n8n n8n1.123.69, 2.33.4 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-r4j2-j3wm-q689

Affected products

Product	Affected versions	Fixed in
n8n n8n	v < 1.123.69, 2.0.0 ≤ v < 2.33.4, 2.34.0	1.123.69, 2.33.4

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