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VULNERABILITIES

CVE-2026-58661 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/n8n-io/n8n/security/advisories/GHSA-w867-jm58-p9pv [email protected]MitigationVendor Advisory
https://www.vulncheck.com/advisories/n8n-disk-space-exhaustion-via-data-table-file-upload-endpoint [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-770Allocation of Resources Without Limits or Throttling[email protected]

Affected Products

ProductVersions
n8n n8n
< 1.123.58
>= 2.0.0, < 2.28.0

CPE

  • cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*
  • cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-58661
NVD Published Date:
Jul 10, 2026
NVD Last Modified:
Jul 13, 2026
Source:
[email protected]
CVE-2026-58661 Details - Not Deferred