cvedb.io
CVE-2026-54774
HIGH · CVSS 7.4
EPSS exploitation probability: 0%
Published 2026-07-08T23:16:55.090 · Last modified 2026-07-08T23:16:55.090

Summary

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, SamlSerializer skips final SignatureValue verification when a CoreWCF service validates SAML tokens using a non-X.509 signing token, allowing an attacker to reference a non-X.509 SecurityToken key identifier and bypass assertion signature verification. This issue is fixed in versions 1.8.1 and 1.9.1.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.