Denial of Service in Python Protobuf

A denial-of-service (DoS) vulnerability exists in google.protobuf.json_format.ParseDict() in Python, where the max_recursion_depth limit can be bypassed when parsing nested google.protobuf.Any messages. Due to missing recursion depth accounting inside the internal Any-handling logic, an attacker can supply deeply nested Any structures that bypass the intended recursion limit, eventually exhausting Python’s recursion stack and causing a RecursionError.

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未经控制的递归

Google protobuf 安全漏洞

Google protobuf是美国谷歌（Google）公司的一种数据交换格式。 Google protobuf存在安全漏洞，该漏洞源于google.protobuf.json_format.ParseDict函数在解析嵌套的google.protobuf.Any消息时可绕过max_recursion_depth限制，可能导致拒绝服务攻击。

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