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cve/2024/CVE-2024-40627.md
0xMarcio 3428c6bdc6 Update CVE sources 2024-08-05 18:41
2024-08-05 18:41:32 +00:00

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CVE-2024-40627

Description

Fastapi OPA is an opensource fastapi middleware which includes auth flow. HTTP OPTIONS requests are always allowed by OpaMiddleware, even when they lack authentication, and are passed through directly to the application. OpaMiddleware allows all HTTP OPTIONS requests without evaluating it against any policy. If an application provides different responses to HTTP OPTIONS requests based on an entity existing (such as to indicate whether an entity is writable on a system level), an unauthenticated attacker could discover which entities exist within an application. This issue has been addressed in release version 2.0.1. All users are advised to upgrade. There are no known workarounds for this vulnerability.

POC

Reference

Github

No PoCs found on GitHub currently.