CVE-2024-23829

Summary

CVE-2024-23829 is a vulnerability affecting the asynchronous HTTP client/server framework, aiohttp, for asyncio and Python. The issue lies in the Python HTTP parser, where security-sensitive components retain inconsistent character set allowances. This can potentially enable injection of unintended requests and request smuggling. An incomplete fix for a previous vulnerability, CVE-2023-47627, left validation weak, which could trigger unhandled exceptions when processing malformed input. These exceptions could lead to excessive resource consumption on the application server and its logging facilities. Version 3.9.2 addresses this vulnerability by addressing the inconsistencies and improving robustness against proxy frame boundary attacks.

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