Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.
Problem types
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
Product status
References
github.com/...iohttp/security/advisories/GHSA-jj3x-wxrx-4x23
github.com/...ommit/bc1319ec3cbff9438a758951a30907b072561259