CVE-2026-54774 CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate

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...

CVE-2026-54774 CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate

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...

CVE-2026-54774 CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate

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...

CVE-2026-54779 CoreWCF: SAML token replay protection is inoperative

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 replay protection is inoperative because DefaultTokenReplayCache.TryAdd does not reject duplicate tokens when DetectReplayedTokens is enabled, allowing a captur...

EUVD-2026-42463

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 replay protection is inoperative because DefaultTokenReplayCache.TryAdd does not reject duplicate tokens when DetectReplayedTokens is enabled, allowing a captur...

CVE-2026-54779 CoreWCF: SAML token replay protection is inoperative

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 replay protection is inoperative because DefaultTokenReplayCache.TryAdd does not reject duplicate tokens when DetectReplayedTokens is enabled, allowing a captur...

CVE-2026-54779

CoreWCF (Windows Communication Foundation port for .NET Core) has a SAML token replay protection flaw prior to versions 1.8.1 and 1.9.1. The issue arises because DefaultTokenReplayCache.TryAdd does not reject duplicate tokens when DetectReplayedTokens is enabled, allowing a captured token to be r...

CVE-2026-54782: Authentication Bypass by Spoofing

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 binding...

CVE-2026-54779: Authentication Bypass by Capture-replay

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 replay protection is inoperative because DefaultTokenReplayCache.TryAdd does not reject duplicate tokens when DetectReplayedTokens is enabled, allowing a captur...

GO-2026-5899 Casdoor doesn't enforce SAML assertion time bounds in github.com/casdoor/casdoor

Casdoor doesn't enforce SAML assertion time bounds in github.com/casdoor/casdoor...

K000162084: Spring Web Services vulnerability CVE-2026-41000

Security Advisory Description Wss4jSecurityInterceptor did not consistently wire Apache WSS4J ReplayCache instances into RequestData for validation-time checks. As a result, protections against replay of UsernameToken nonces and creation timestamps, Timestamp elements, and certain SAML one-time-u...

📄 SAP NetWeaver ABAP SAML XML Signature Wrapping Authentication Bypass

This Metasploit module exploits a vulnerability in SAP NetWeaver ABAP's SAML Service Provider implementation CVE-2026-23687. The vulnerability allows an attacker to bypass SAML signature verification through XML Signature wrapping attacks. By crafting a SAML response with a wrapped signature usin...

Vulnerabilities are addressed through Rancher Labs in Rancher.

Rancher Labs has identified vulnerabilities in Rancher versions 2.13.0 through 2.13.7, and 2.14.0 through 2.14.3. The first vulnerability relates to SAML authentication replay issues in the Assertion Consumer Service ACS handler in Rancher versions 2.14.0 onwards, but not including 2.14.3. The AC...

NetScaler ADC and NetScaler Gateway Multiple Vulnerabilities (CTX696604)

The remote NetScaler ADC formerly Citrix ADC or NetScaler Gateway formerly Citrix Gateway device is version 13.1 prior to 13.1-63.18, 14.1 prior to 14.1-72.61, 13.1-FIPS/NDcPP prior to 13.1-37.272, or 14.1-FIPS prior to 14.1-72.61. It is, therefore, affected by multiple vulnerabilities: -...

GHSA-794G-X443-36F7 Keycloak: Unauthorized access via improper validation of encrypted SAML assertions

Keycloak's SAML broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response, injecting an encrypted assertion for an arbitrary principal, leading...

Improper Neutralization of Data within XPath Expressions ('XPath Injection')

Overview Affected versions of this package are vulnerable to Improper Neutralization of Data within XPath Expressions 'XPath Injection' through the XPath Transform process. An attacker can cause the application to become unresponsive or crash by sending specially crafted messages that exploit thi...

SimpleSAMLphp has Possible DoS via XPath Transform

Summary This library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications and specifically...

GHSA-6929-8P9F-26JX SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass

Summary SimpleSAMLphp's HTTP-Artifact receive path can treat an unsigned embedded SAML Response as cryptographically valid for the wrong IdP. In the HTTPArtifact::receive flow, the SOAP ArtifactResponse receives a TLS-based validator from SOAPClient::addSSLValidator. The embedded SAML Response th...

PT-2026-55372

Keycloak's SAML broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response, injecting an encrypted assertion for an arbitrary principal, leading...

PT-2026-55362

Summary This library turned out to be vulnerable to Denial-of-Service attacks using XPath transforms. A mitigation has been put in place to restrict the number of transforms and to restrict transforms to only the transform-algorithms mentioned in the SAML 2.0 Core Specifications and specifically...