CVE-2026-77080

EUVD-2026-63268

20.08.2026, 12:16

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.

OS Command Injection

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.8 HIGH	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 45.09%

Affected Products (NVD)

Vendor	Product	Version
n8n	n8n	𝑥 < 1.123.69
n8n	n8n	2.0.0 ≤ 𝑥 < 2.33.4
n8n	n8n	2.34.0

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

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