Security Advisory

CVE-2026-54780

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-08 22:15:06

Last updated 2026-07-09 19:21:36

Assigner GitHub_M

CVSS score 3.7

State PUBLISHED

Description

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, the CoreWCF WS-Security 1.0 receive pipeline validates ds:SignedInfo SignatureMethod against the configured SecurityAlgorithmSuite but does not validate each ds:Reference DigestMethod, allowing a sender to use a rejected digest algorithm such as SHA-1 while the message is still accepted. This issue is fixed in versions 1.8.1 and 1.9.1.

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