KEV Entry

CVE-2026-21858

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-21858

2026-02-07 00:00 UTC

Timestamps

2026-02-07

2026-02-07

Scope

KEVIntel entry: n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling | Affected: n8n-io / n8n | CVSS: 10.0 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2026-21858', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-21858'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2026-21858'}

4fce66f1-0def-492f-8737-18bc4576e766

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:42 UTC

2026-06-19 12:42 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-02-07T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 10.0,
  "cvss_severity": "CRITICAL",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "n8n",
  "title": "n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling",
  "used_in_malware": "unknown",
  "vendor": "n8n-io"
}
 -
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