CVE-2026-62899
.NET Security Feature Bypass Vulnerability
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network.
| Vendor | microsoft |
| Product | .net 10.0 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Aug 11, 2026 |
| Last Updated | Aug 11, 2026 |
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CVSS v3 Breakdown
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 Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / .NET 10.0
10.0.0 < 10.0.11
Microsoft / .NET 8.0
8.0.0 < 8.0.30
Microsoft / .NET 9.0
9.0.0 < 9.0.19
Microsoft / Microsoft Visual Studio 2022 version 17.14
17.14.0 < 17.14.38
Microsoft / Microsoft Visual Studio 2026 version 18.8
18.0 < 18.8.3