CVE-2026-62899
MediumCVSS 5.9Exploitation Probability (EPSS)
Elevated risk55th percentile - higher than 55% of all known CVEs
Summary
An inconsistent interpretation of HTTP requests (HTTP request/response smuggling) vulnerability in .NET allows an unauthorized attacker to bypass a security feature over a network.
Risk Assessment
An unauthorized attacker could bypass security controls, potentially leading to unauthorized actions.
Recommendation
Update .NET to a version that includes fixes for this vulnerability.
Other vulnerabilities in .NET
See all- CVE-2026-50649High
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
- CVE-2023-36049High
A vulnerability in .NET, .NET Framework, and Visual Studio allows elevation of privilege. Technical details are not provided in the description, but the flaw may allow an attacker to gain higher privileges on the system.
- CVE-2026-96960High
Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.
- CVE-2026-96959High
Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.
- CVE-2026-96958High
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
- CVE-2026-96957High
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
- CVE-2026-96238Medium
Origin validation error in .NET allows an unauthorized attacker to bypass a security feature over a network.
- CVE-2026-96237High
Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network.
- CVE-2026-96235High
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
- CVE-2026-96234Medium
Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.
Original NVD description (English source)
Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

