{"cve":"CVE-2026-58661","nvd":{"published":"2026-07-10T15:16:47.987","modified":"2026-10-24T23:10:00.160","status":"Analyzed","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","score":4.3},"cwes":["CWE-770"],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-w867-jm58-p9pv","https://www.vulncheck.com/advisories/n8n-disk-space-exhaustion-via-data-table-file-upload-endpoint"],"products":["n8n:n8n"],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-58661","score":0.00386,"percentile":0.32396,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-w867-jm58-p9pv","url":"https://osv.dev/vulnerability/GHSA-w867-jm58-p9pv","summary":"n8n: Authenticated Users Can Exhaust Temporary Disk Storage via Data-Table File Uploads","modified":"2026-07-22T22:31:06.000199905Z","packages":[{"ecosystem":"npm","name":"n8n","purl":"pkg:npm/n8n","ranges":[">=2.0.0 <2.28.0"],"fixed":["2.28.0"]},{"ecosystem":"npm","name":"n8n","purl":"pkg:npm/n8n","ranges":["<1.123.58"],"fixed":["1.123.58"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}