CVE-2026-77071

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

0.6% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-08-20 12:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-09-01 20:01 UTC Last updatedMost recent change to the record

Details

Published

2026-08-20 12:16 UTC

Last modified

2026-09-01 20:01 UTC

Exploit probability

0.6% · EPSS, next 30 days

Weakness

CWE-89 · SQL injection

Record status

Analyzed

Affected

• n8n < 1.123.69
• n8n < 2.33.4
• n8n 2.34.0

Attack profile CVSS 4.0 · 7.1

Attack vector

Network

Complexity

Low

Attack requirements

Present

Privileges needed

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

None