Improper Neutralization of Special Elements in Output Used by a Downstream Component in n8n - #VU150760
Published: September 17, 2026
Vulnerability identifier: #VU150760
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to read, modify, or delete database records.
The vulnerability exists due to improper neutralization of special elements in the Supabase node\'s Filters (String) mode when constructing database queries. A remote attacker can submit a crafted filter expression to read, update, or delete unintended rows.
Exploitation requires a workflow that constructs the filter from untrusted input.
Affected software
n8n
Remediation
Install security update from vendor's website.
n8n - addressed in versions 1.123.80, 2.39.6, 2.40.1