CVE-2025-69227: Aiohttp Assert Data Validation

Using `assert` for critical data validation or state checks (such as end-of-file boundaries, stream validation, or field presence) is unsafe. When Python is executed with optimizations enabled (`-O` or `PYTHONOPTIMIZE=1`), all `assert` statements are stripped. This allows malformed data to bypass checks entirely, potentially leading to infinite loops or Deni

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Description

Using `assert` for critical data validation or state checks (such as end-of-file boundaries, stream validation, or field presence) is unsafe. When Python is executed with optimizations enabled (`-O` or `PYTHONOPTIMIZE=1`), all `assert` statements are stripped. This allows malformed data to bypass checks entirely, potentially leading to infinite loops or Deni