CVE-2026-77071: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in n8n-io n8n
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.
AI Analysis
Technical Summary
The vulnerability in n8n involves improper neutralization of special elements used in SQL commands within the Supabase node. Specifically, the Row Get Many, Delete, and Update operations construct filter queries by concatenating an expression-bindable value without proper escaping. This allows an attacker to inject a condition that broadens the filter scope from a single row to all rows, resulting in full-table disclosure, deletion, or modification.
Potential Impact
An attacker can exploit this vulnerability to escalate a single-row operation into a full-table operation, potentially leading to unauthorized disclosure, deletion, or modification of all rows in the affected database table. This compromises data confidentiality, integrity, and availability within the affected n8n instances.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid using vulnerable versions and restrict access to the Supabase node operations. Monitor for vendor updates regarding patches or official mitigations.
CVE-2026-77071: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in n8n-io n8n
Description
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 v4.0
Score 7.1high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in n8n involves improper neutralization of special elements used in SQL commands within the Supabase node. Specifically, the Row Get Many, Delete, and Update operations construct filter queries by concatenating an expression-bindable value without proper escaping. This allows an attacker to inject a condition that broadens the filter scope from a single row to all rows, resulting in full-table disclosure, deletion, or modification.
Potential Impact
An attacker can exploit this vulnerability to escalate a single-row operation into a full-table operation, potentially leading to unauthorized disclosure, deletion, or modification of all rows in the affected database table. This compromises data confidentiality, integrity, and availability within the affected n8n instances.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid using vulnerable versions and restrict access to the Supabase node operations. Monitor for vendor updates regarding patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-20T10:51:39.783Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a86e706acd9273b498befac
Added to database: 08/20/2026, 11:37:42 UTC
Last enriched: 08/20/2026, 11:53:09 UTC
Last updated: 08/20/2026, 19:38:49 UTC
Views: 6
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