CVE-2024-49768

Waitress is a Web Server Gateway Interface server for Python 2 and 3. A remote client may send a request that is exactly recv_bytes (defaults to 8192) long, followed by a secondary request using HTTP pipelining. When request lookahead is disabled (default) we won't read any more requests, and when the first request fails due to a parsing error, we simply close the connection. However when request lookahead is enabled, it is possible to process and receive the first request, start sending the error message back to the client while we read the next request and queue it. This will allow the secondary request to be serviced by the worker thread while the connection should be closed. Waitress 3.0.1 fixes the race condition. As a workaround, disable channel_request_lookahead, this is set to 0 by default disabling this feature.

The following products are affected by CVE-2024-49768 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-49768.

URL	Resource
https://github.com/Pylons/waitress/commit/e4359018537af376cf24bd13616d861e2fb76f65
https://github.com/Pylons/waitress/security/advisories/GHSA-9298-4cf8-g4wj
https://nvd.nist.gov/vuln/detail/CVE-2024-49768
https://www.cve.org/CVERecord?id=CVE-2024-49768