CVE-2026-58661: n8n before 1.123.58 (exclusive), from 2.0.0 (inclusive), before 2.28.0 (exclusive), 0 to before 2.28.0 (+1 more…

CVE-2026-58661. CVSS 3.1 base score 4.3 (MEDIUM, NVD). EPSS 0.00386 (percentile 0.31529), scored 24-Oct-2026.

Affected technology

n8n · before 1.123.58 (exclusive)
n8n

n8n · from 2.0.0 (inclusive), before 2.28.0 (exclusive)
n8n

n8n · 0 to before 2.28.0
n8n

n8n · 0 to before 1.123.58
n8n

Description’s affected range: before 2.28.0 (and before 1.123.58 on the 1.x branch)

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

An authenticated user can repeatedly upload files that accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host. Vendor/CNA’s CVSS 4.0 assessment (base score 5.3/10) rates confidentiality and integrity impact as none; availability impact as low.

Published 25-Oct-2026 01:31 UTC

CWE: CWE-770
CCR priority: 17.3 /100 (P5)
CVSS 3.1: 4.3 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L · NVD
EPSS: 0.00386 · percentile 0.31529 · 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-2026-58661.html