What is CVE-2026-71262?

CVE-2026-71262 is a critical-severity vulnerability in Iotsharp, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-05.

How severe is CVE-2026-71262?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Iotsharp

CVE-2026-71262

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 configu…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Iotsharp — versions 0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

Frequently asked questions

What is CVE-2026-71262?: CVE-2026-71262 is a critical-severity vulnerability in Iotsharp, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-05.
How severe is CVE-2026-71262?: Critical severity. CVSS v3 base score is 9.8 out of 10.