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CVE-2026-54782criticalCWE-290CWE-347

CoreWCF: Authentication bypass in CoreWCF SAML 1.1 / 2.0 token signature validation

28Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 10epss 0.2%
probabilidad de explotación
0.2%top 84% de las CVE
explotación observada
noninguna fuente lo reporta
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 SAML 1.1 and SAML 2.0 token validation does not correctly resolve the issuer signing key or require signed tokens when IdentityConfiguration is used with federated bindings, allowing an unauthenticated remote attacker to impersonate any principal the trusted STS could issue. This issue is fixed in versions 1.8.1 and 1.9.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Productos afectados
CoreWCF · CoreWCF