MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL

Date Oct 6, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product NuGet · Microsoft.Native.Quic.MsQuic.OpenSSL

CVE CVE-2026-105794

Critical vendor advisory CVE-2026-105794

Summary

MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL

Why it matters

GitHub has published a reviewed security advisory for Microsoft.Native.Quic.MsQuic.OpenSSL. Prioritize it with other application dependency updates.

Operator check

Check whether Microsoft.Native.Quic.MsQuic.OpenSSL is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 9.1.

Sources

GitHub Advisory GHSA-w5f4-fx9m-m4q7 NVD — CVE-2026-105794 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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