Security Advisory

CVE-2026-54783

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-08 22:16:08

Last updated 2026-07-10 03:55:39

Assigner GitHub_M

CVSS score 7.4

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, CoreWCF WS-Security endorsing and supporting signature verification does not ensure the selected ds:Signature covers the expected Security header target, allowing an attacker with one captured signed SOAP envelope to replay arbitrary service operations as the victim principal. This issue is fixed in versions 1.8.1 and 1.9.1.

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