VULNERABILITY INTELLIGENCE

CVE-2026-71262

CVSS score9.8 CRITICAL
EPSS probability0.63%
CISA KEVNot currently listed
Published2026-08-05
Last modified2026-08-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

IoTSharp BlobStorageController.cs lacks the [Authorize] attribute applied to every other controller in the application (DevicesController, CustomersController, TenantsController, etc.), and no global authorization FallbackPolicy is configured in Startup.cs, leaving its Upload/Download/List/Modify/Delete endpoints reachable by unauthenticated remote attackers.

Weakness classification

  • 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c: CWE-306

Primary references