Detections
Analytics

SCA: security update for CoreWCF.UnixDomainSocket (GHSA-q6v9-43v5-jv9q)

medium Tenable Cloud Security Plugin ID 443734

Description

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

 - CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to
 1.8.1 and 1.9.1, CoreWCF UnixDomainSocket POSIX peer identity resolution uses non-reentrant getpwuid and
 getgrgid calls, allowing concurrent connections to attribute one connection's identity to another or crash
 the host process under contention. This issue is fixed in versions 1.8.1 and 1.9.1. (CVE-2026-54778)

Solution

Update the CoreWCF.UnixDomainSocket library and its related packages to version 1.8.1 or later.

See Also

https://github.com/advisories/GHSA-q6v9-43v5-jv9q

Plugin Details

Severity: Medium

ID: 443734

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/20/2026

Updated: 7/9/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.75

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.2

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-54778

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.4

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-54778