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Microsoft.OpenAPI: Circular schema references may terminate OpenAPI parsing

🗓️ 30 Jun 2026 15:56:24Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 3 Views

Impact A small OpenAPI document containing a circular schema reference can cause process termination through stack overflow in Microsoft.OpenApi. The issue affects OpenAPI document parsing through public OpenAPI.NET reader APIs and has been confir...

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30 Jun 2026 15:56Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
SSVC
3