CVE-2026-54780

LOW3.7

CoreWCF: WS-Security Reference DigestMethod Algorithm-Suite Bypass

Published Jul 8, 2026

Modified 1 months ago

Details

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.

References

WEB

https://github.com/CoreWCF/CoreWCF/commit/58742312117cc671e6e9c694c2f5f9f669c17136

WEB

https://github.com/CoreWCF/CoreWCF/commit/9104e581cff3d047ace5e179bfae86807a44be1f

WEB

https://github.com/CoreWCF/CoreWCF/commit/fea67b2cd73a5a85115c325d504303ec7382e133

WEB

https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1

WEB

https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1

WEB