Insecure Deserialization with Basic Auth

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How Insecure Deserialization Manifests in Basic Auth

Insecure deserialization in Basic Auth contexts typically occurs when authentication tokens, session data, or user state are serialized and later deserialized without proper validation. While Basic Auth itself doesn't inherently involve complex serialization, many implementations store authentication state or credentials in serialized formats that become vulnerable.

A common pattern involves storing serialized user objects in HTTP-only cookies after Basic Auth verification. Consider this vulnerable implementation:
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