CVE-2026-58661
MEDIUMn8n - Disk Space Exhaustion via Data-Table File Upload Endpoint
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-w867-jm58-p9pv)
https://github.com/n8n-io/n8n/security/advisories/GHSA-w867-jm58-p9pv
Third Party Advisory third-party-advisory
VulnCheck Advisory: n8n - Disk Space Exhaustion via Data-Table File Upload Endpoint
https://www.vulncheck.com/advisories/n8n-disk-space-exhaustion-via-data-table-file-upload-endpoint
Scores
CVSS v3
4.3
EPSS
0.0023
EPSS Percentile
13.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (6)
n8n/n8n
< 1.123.58 (3 CPE variants)
n8n/n8n
< 2.28.0
n8n/n8n
1.123.58
n8n/n8n
2.28.0
npm/n8n
0 - 1.123.58npm
npm/n8n
2.0.0 - 2.28.0npm
Published
Jul 10, 2026
Tracked Since
Jul 10, 2026