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CVE-2026-77071n8n before 1.123.69 PostgREST Filter Injection via Supabase
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.
7.1 HIGHEPSS 0.61%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.1 | HIGH | 4.0VulnCheck (CNA) | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H |
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-77071
- Status
- Analyzed
- Assigner (CNA)
- VulnCheck
- Published
- Aug 20, 2026
- Last modified
- 2026-09-01 20:01 UTC
- Weaknesses
- CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Products
As published by the CNA in the CVE record.
n8n-ion8n1 version range
- before 1.123.69
n8n-ion8n1 version range
- 2.34.0 before 2.34.1
n8n-ion8n1 version range
- 2.0.0 before 2.33.4