CVEvulnerability
CVE-2026-54779
5.9 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-07-08
- Last modified
- 2026-07-09
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-294, CWE-613
Description
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.
Related
Weakness · not in database (1)
Weakness · CWE (1)
- CWE-294 Authentication Bypass by Capture-replay weakness
References
- https://github.com/CoreWCF/CoreWCF/commit/3800c4e2bb4c6fde00ddacefdc2221ef33d55621 github.com
- https://github.com/CoreWCF/CoreWCF/commit/7b0b5231cf21b4b5c1fc3caac9981f8bee43823f github.com
- https://github.com/CoreWCF/CoreWCF/commit/84f8cff5a786b5aaa73448cb379d366a7df98238 github.com
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1 github.com
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1 github.com
- https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-9jr3-rj99-8jq3 github.com