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.

Severity (CVSS)

Base score5.3
SeverityMedium
VersionCVSS 4.0
VectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Provided byCNA

Weaknesses

  • CWE-770 — Allocation of Resources Without Limits or Throttling

Affected products

VendorProductVersions
n8nn8n0 to <2.28.0; 2.28.0
n8nn8n0 to <1.123.58; 1.123.58

References

Authoritative sources

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Generated from the official CVE List on 11 Jul 2026 07:02 UTC.