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GHSA-9jr3-rj99-8jq3

CoreWCF: SAML token replay protection is inoperative

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-54779

Packages

EcosystemPackageAffectedFixed in
NuGet CoreWCF.Primitives < 1.8.1 1.8.1
NuGet CoreWCF.Primitives >= 1.9.0, < 1.9.1 1.9.1

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact When enabling DetectReplayedTokens, a token can be replayed and will be detected despite it being reused. ### Patches Fixed in CoreWCF v1.8.1 and v1.9.1 ### Workarounds Provide your own implementation of `ITokenReplayCache` with the correct behavior.

References

External links from the advisory. They lead to third-party sites.