Filter Injection Vulnerability in n8n's Quick Base Node
CVE-2026-118645

7HIGH

Key Information:

Vendor

N8n-io

Status
N8n
Vendor
CVE Published:
28 October 2026

What is CVE-2026-118645?

A filter injection vulnerability exists in n8n's Quick Base node, allowing attackers to exploit untrusted input provided to the Where filter. This flaw can lead to unintended data exposure or deletion, as malicious actors can craft webhook data affecting workflow credentials. Proper validation and sanitization of inputs are essential to safeguard against such threats.

Affected Version(s)

n8n 0 < 1.123.85

n8n 2.44.0 < 2.44.1

n8n 2.0.0 < 2.43.5

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-65...
vendor-advisory
https://www.vulncheck.com/advisories/n8n-before-1.123.85-...
third-party-advisory

CVSS V4

Score:
7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Masofgon
.