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.
{
"cwe_ids": [
"CWE-78"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77080.json",
"cna_assigner": "VulnCheck"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.123.69"
},
{
"introduced": "2.34.0"
},
{
"fixed": "2.34.1"
},
{
"introduced": "2.0.0"
},
{
"fixed": "2.33.4"
}
],
"source": "AFFECTED_FIELD"
}