CVE-2026-65589: n8n 2.30.0

CVE-2026-65589. CVSS 3.1 base score 6.5 (MEDIUM, NVD). EPSS 0.00484 (percentile 0.40785), scored 24-Oct-2026.

Affected technology

n8n · before 1.123.64 (exclusive)
n8n

n8n · from 2.0.0 (inclusive), before 2.29.8 (exclusive)
n8n

n8n · 2.30.0
n8n

n8n · 0 to before 1.123.64
n8n-io

n8n · 0 to before 2.30.1
n8n-io

n8n · 0 to before 2.29.8
n8n-io

Description’s affected range: versions before 1.123.64 fail to properly mask custom HTTP header credentials in LLM sub-node execution data

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

Authenticated users with access to execution data can read exposed header values and credentials that persist in the database and can be exported. Vendor/CNA’s CVSS 4.0 assessment (base score 5.1/10) rates confidentiality impact as low; integrity and availability impact as none.

Published 25-Oct-2026 01:30 UTC

CWE: CWE-532
CCR priority: 26.1 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · NVD
EPSS: 0.00484 · percentile 0.40785 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-65589.html