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GHSA-jj3x-wxrx-4x23

AIOHTTP vulnerable to DoS when bypassing asserts

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-69227

Packages

EcosystemPackageAffectedFixed in
PyPI aiohttp < 3.13.3 3.13.3

Details

As written in the advisory (Markdown source, shown as plain text).

### Summary When assert statements are bypassed, an infinite loop can occur, resulting in a DoS attack when processing a POST body. ### Impact If optimisations 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. ------ Patch: https://github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259

References

External links from the advisory. They lead to third-party sites.