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CVE-2026-54781

HIGH(7.4)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Risk Signal Score29/100 — MITTEL
  • CVSS 7.4 — Hoch
  • Weniger als 24 Stunden alt

Beschreibung

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 token validation does not enforce SubjectConfirmation method URIs or holder-of-key proof keys in SamlSecurityTokenHandler, allowing holder-of-key downgrade or custom confirmation method assertions to authenticate a subject without proving authority over the assertion. This issue is fixed in versions 1.8.1 and 1.9.1.

GitHub Advisories

GHSA-48pq-2xq3-c2m4HIGH

CoreWCF: SAML SubjectConfirmation methods and holder-of-key proof keys are not enforced

nuget/CoreWCF.Primitives→ 1.8.1
GitHub Advisory

Referenzen