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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-07-15T19:21:40.298Z

Updated: 2024-08-02T04:33:11.894Z

Reserved: 2024-07-08T16:13:15.510Z

Link: CVE-2024-40627

cve-icon Vulnrichment

Updated: 2024-07-15T20:13:44.535Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-07-15T20:15:05.033

Modified: 2024-11-21T09:31:23.393

Link: CVE-2024-40627

cve-icon Redhat

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