VULNERABILITY INTELLIGENCE

CVE-2026-58661

CVSS score4.3 MEDIUM
EPSS probability0.39%
CISA KEVNot currently listed
Published2026-07-10
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Description

n8n before 2.28.0 (and before 1.123.58 on the 1.x branch) contains a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota check does not account for files already written to the shared temporary directory, allowing an authenticated user to repeatedly upload files that accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host.

Weakness classification

  • disclosure@vulncheck.com: CWE-770

Primary references