AUGUST 15, 2026
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Case File

CVE-2026-71262

CRITICAL · CVSS 9.8 EPSS 0.35% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

The IoTSharp application has a critical vulnerability in its BlobStorageController, where the absence of an [Authorize] attribute and a global authorization policy allows unauthenticated remote attackers to access sensitive file operations. This flaw enables path traversal attacks, permitting attackers to read, write, modify, and delete arbitrary files, potentially leading to remote code execution through webshell uploads. Organizations utilizing IoTSharp should prioritize immediate remediation to protect against unauthorized access and potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-71262
Severity
CRITICAL
CVSS
9.8
EPSS
0.35%

Original NVD 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.