CVE Watch9 jul 2026

CVE-2026-54780

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-Secur

CVSS

3.7

Bajo

EPSS

0.2%

KEV

—

Exploit Today

0-100

Publicado: 8 jul 2026 · Última mod.: 9 jul 2026 · CWE-327 · CWE-757

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-07-092026-07-17

Descripción técnica

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.

Referencias oficiales

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