# CoreWCF.Primitives (NuGet) vulnerabilities Source: https://junglewise.ai/threats/technologies/corewcf-primitives Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/corewcf-primitives.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 8 vulnerabilities in CoreWCF.Primitives (NuGet): 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-54784, was published on 8 July 2026. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 0 - All time: 8 (1 critical, 0 exploited in the wild) ## About CoreWCF.Primitives (NuGet) The core library for CoreWCF, a port of Windows Communication Foundation (WCF) to .NET Core. ## Latest CoreWCF.Primitives (NuGet) vulnerabilities - [CVE-2026-54784: CoreWCF cleartext proof key exposure in SPNEGO negotiation](https://junglewise.ai/threats/cve-2026-54784-corewcf-cleartext-proof-key-exposure-in-spnego-negotiation) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54783: CoreWCF signature verification bypass in WS-Security](https://junglewise.ai/threats/cve-2026-54783-corewcf-signature-verification-bypass-in-ws-security) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54782: CoreWCF authentication bypass in SAML token validation](https://junglewise.ai/threats/cve-2026-54782-corewcf-authentication-bypass-in-saml-token-validation) (critical, CVSS 10, published 8 Jul 2026) - [CVE-2026-54781: CoreWCF improper authentication in SAML SamlSecurityTokenHandler](https://junglewise.ai/threats/cve-2026-54781-corewcf-improper-authentication-in-saml-samlsecuritytokenhandler) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54780: CoreWCF algorithm downgrade in WS-Security receive pipeline](https://junglewise.ai/threats/cve-2026-54780-corewcf-algorithm-downgrade-in-ws-security-receive-pipeline) (low, CVSS 3.7, published 8 Jul 2026) - [CVE-2026-54779: CoreWCF SAML token replay protection bypass in DefaultTokenReplayCache](https://junglewise.ai/threats/cve-2026-54779-corewcf-saml-token-replay-protection-bypass-in) (medium, CVSS 5.9, published 8 Jul 2026) - [CVE-2026-54774: CoreWCF SAML signature bypass in SamlSerializer](https://junglewise.ai/threats/cve-2026-54774-corewcf-saml-signature-bypass-in-samlserializer) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54773: CoreWCF improper signature verification in WS-Security](https://junglewise.ai/threats/cve-2026-54773-corewcf-improper-signature-verification-in-ws-security) (medium, CVSS 5.9, published 8 Jul 2026) ## Most severe CoreWCF.Primitives (NuGet) vulnerabilities - [CVE-2026-54782: CoreWCF authentication bypass in SAML token validation](https://junglewise.ai/threats/cve-2026-54782-corewcf-authentication-bypass-in-saml-token-validation) (critical, CVSS 10, published 8 Jul 2026) - [CVE-2026-54784: CoreWCF cleartext proof key exposure in SPNEGO negotiation](https://junglewise.ai/threats/cve-2026-54784-corewcf-cleartext-proof-key-exposure-in-spnego-negotiation) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54781: CoreWCF improper authentication in SAML SamlSecurityTokenHandler](https://junglewise.ai/threats/cve-2026-54781-corewcf-improper-authentication-in-saml-samlsecuritytokenhandler) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54774: CoreWCF SAML signature bypass in SamlSerializer](https://junglewise.ai/threats/cve-2026-54774-corewcf-saml-signature-bypass-in-samlserializer) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54783: CoreWCF signature verification bypass in WS-Security](https://junglewise.ai/threats/cve-2026-54783-corewcf-signature-verification-bypass-in-ws-security) (high, CVSS 7.4, published 8 Jul 2026) - [CVE-2026-54779: CoreWCF SAML token replay protection bypass in DefaultTokenReplayCache](https://junglewise.ai/threats/cve-2026-54779-corewcf-saml-token-replay-protection-bypass-in) (medium, CVSS 5.9, published 8 Jul 2026) - [CVE-2026-54773: CoreWCF improper signature verification in WS-Security](https://junglewise.ai/threats/cve-2026-54773-corewcf-improper-signature-verification-in-ws-security) (medium, CVSS 5.9, published 8 Jul 2026) - [CVE-2026-54780: CoreWCF algorithm downgrade in WS-Security receive pipeline](https://junglewise.ai/threats/cve-2026-54780-corewcf-algorithm-downgrade-in-ws-security-receive-pipeline) (low, CVSS 3.7, published 8 Jul 2026) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other NuGet technologies - [Microsoft.ChakraCore (NuGet)](https://junglewise.ai/threats/technologies/microsoft-chakracore): 247 vulnerabilities - [Magick.NET-Q16-AnyCPU (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-anycpu): 167 vulnerabilities - [Magick.NET-Q16-HDRI-AnyCPU (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-anycpu): 162 vulnerabilities - [Magick.NET-Q8-AnyCPU (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-anycpu): 162 vulnerabilities - [Magick.NET-Q16-HDRI-x86 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-x86): 160 vulnerabilities - [Magick.NET-Q8-x86 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-x86): 160 vulnerabilities - [Magick.NET-Q16-x86 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-x86): 159 vulnerabilities - [Magick.NET-Q16-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-arm64): 157 vulnerabilities - [Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-openmp-arm64): 157 vulnerabilities - [Magick.NET-Q16-HDRI-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-x64): 157 vulnerabilities - [Magick.NET-Q16-OpenMP-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-openmp-arm64): 157 vulnerabilities - [Magick.NET-Q16-OpenMP-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-openmp-x64): 157 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "CoreWCF.Primitives (NuGet) vulnerabilities", https://junglewise.ai/threats/technologies/corewcf-primitives, 9 November 2026.