CVE-2026-62899 MEDIUM

CVE-2026-62899: .NET Security Feature Bypass Vulnerability

Vendor Microsoft
Product .NET 10.0
Weakness CWE-444
Published August 11, 2026
Last update August 14, 2026
View on NVD All CVEs

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network.

Key dates

02Disclosure timeline

August 11, 2026 CVE published
August 14, 2026 Record updated