Detections
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SCA: security update for Microsoft.Native.Quic.MsQuic.OpenSSL (GHSA-w5f4-fx9m-m4q7)

critical Tenable Self-Hosted Container Security Plugin ID 473456

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - MsQuic is a cross-platform C implementation of the IETF QUIC protocol exposed to C, C++, C#, and Rust.
 Prior to 2.4.20, 2.5.11, and 2.6.1, MsQuic clients using the OpenSSL or QuicTLS TLS backend do not
 properly verify that a server certificate matches the intended target server hostname. An on-path attacker
 can therefore present a certificate that does not match the intended target hostname and spoof the server
 in a man-in-the-middle attack. The Schannel backend is not affected. This issue is fixed in versions
 2.4.20, 2.5.11, and 2.6.1. (CVE-2026-105794)

Solution

Update the Microsoft.Native.Quic.MsQuic.OpenSSL library and its related packages to version 2.4.20 or later.

See Also

https://github.com/advisories/GHSA-w5f4-fx9m-m4q7

Plugin Details

Severity: Critical

ID: 473456

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/6/2026

Updated: 10/6/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.48

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-105794

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.1

Threat Score: 6.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2026

Vulnerability Publication Date: 10/6/2026

Reference Information

CVE: CVE-2026-105794

cwe: CWE-295