CyberRota Analysis
AI-GeneratedThe kin-openapi library prior to version 0.144.0 contains a critical vulnerability where the ValidationHandler.Load() method improperly substitutes a nil AuthenticationFunc with a NoopAuthenticationFunc, allowing unauthenticated requests to bypass security checks for OpenAPI specifications. This flaw can lead to unauthorized access to protected resources, as it inadvertently satisfies all security requirements without proper credential validation. Organizations using this library for API security enforcement should prioritize upgrading to version 0.144.0 to mitigate the risk of unauthorized access.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load() in openapi3filter/validation_handler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without checking credentials. This substitution causes every OpenAPI security requirement to be satisfied for unauthenticated requests when an application relies on ValidationHandler as its enforcement middleware. The no-op callback prevents the fail-closed ErrAuthenticationServiceMissing path from being reached and forwards the request to protected handlers that may require an API key, OAuth token, or another security scheme. This issue is fixed in version 0.144.0.