Package Instance

AIOHTTP vulnerable to  denial of service through large payloads
### Summary
A request can be crafted in such a way that an aiohttp server's memory fills up uncontrollably during processing.

### Impact
If an application includes a handler that uses the `Request.post()` method, an attacker may be able to freeze the server by exhausting the memory.

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Patch: https://github.com/aio-libs/aiohttp/commit/b7dbd35375aedbcd712cbae8ad513d56d11cce60

In aiohttp, compressed files as symlinks are not protected from path traversal
### Summary
Static routes which contain files with compressed variants (`.gz` or `.br` extension) were vulnerable to path traversal outside the root directory if those variants are symbolic links.

### Details
The server protects static routes from path traversal outside the root directory when `follow_symlinks=False` (default).  It does this by resolving the requested URL to an absolute path and then checking that path relative to the root.  However, these checks are not performed when looking for compressed variants in the `FileResponse` class, and symbolic links are then automatically followed when performing `Path.stat()` and `Path.open()` to send the file.

### Impact
Servers with static routes that contain compressed variants as symbolic links, pointing outside the root directory, or that permit users to upload or create such links, are impacted.

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Patch: https://github.com/aio-libs/aiohttp/pull/8653/files

AIOHTTP has unicode match groups in regexes for ASCII protocol elements
### Summary

The parser allows non-ASCII decimals to be present in the Range header.

### Impact

There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability.

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Patch: https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96