CVE-2026-77071

n8n before 1.123.69, 2.33.4, and 2.34.1 contains a PostgREST filter injection vulnerability in the Supabase node's Row Get Many, Delete, and Update operations, which built filter queries by concatenating an expression-bindable value without escaping. An attacker could inject a condition that widened the filter to match every row, turning an intended single-row operation into full-table disclosure, deletion, or modification.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-f4f3-2g67-4vhm	Mitigation Vendor Advisory
https://www.vulncheck.com/advisories/n8n-before-postgrest-filter-injection-via-supabase	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n:2.34.0:::::node.js::

History

No history.

Information

Published : 2026-08-20 12:16

Updated : 2026-09-01 20:01

NVD link : CVE-2026-77071

Mitre link : CVE-2026-77071

CVE.ORG link : CVE-2026-77071

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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