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Kin-Openapi (<= V0.143.0)

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critical advisory

Authentication Bypass in kin-openapi Due to Default NoopAuthenticationFunc

An authentication bypass vulnerability (CWE-287) exists in the `openapi3filter.ValidationHandler` component of the `getkin/kin-openapi` library (versions <= v0.143.0), where the `ValidationHandler.Load()` method silently defaults to a `NoopAuthenticationFunc` when an explicit function is not provided, allowing unauthenticated remote attackers to bypass OpenAPI security requirements and access protected endpoints in Go services.

kin-openapi authentication-bypass api golang library-vulnerability cwe-287
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