CVE-2026-77080CWE-78command-injection

CVE-2026-77080

High · published August 20, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
46.3
In the wild
Unconfirmed
What it 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 record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
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
EPSS
0.00568 · 46.3th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-08-20T16:16Z
Affected products (3)
ProductVersionsFixed in
n8n/n8n< 1.123.691.123.69
n8n/n8n≥ 2.0.0, < 2.33.42.33.4
n8n/n8nall versions—
References (2)
https://github.com/n8n-io/n8n/security/advisories/GHSA-r4j2-j3wm-q689 · [email protected]https://www.vulncheck.com/advisories/n8n-before-arbitrary-file-read-and-write-via-snowflake · [email protected]
EPSS history
Timeline
  • 20 AUG 11:21Z
    n8n before 1.123.69 Arbitrary File Read and Write via Snowflake
    cvelistv5