Security Risk Category

token-validation Security Risks

Published vulnerability pages connected to token-validation. One risk can appear in multiple categories while keeping one canonical page.

token-validation risks

Showing 1 of 1 published risks.

mediumEPSS 0.003

CoreWCF SAML Token Replay Cache Bypass Vulnerability

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 captured token to be reused. This issue is fixed in versions 1.8.1 and 1.9.1.

CVE-2026-54779corewcfdotnetnugetwcf

Updated Jul 10, 2026