Most recent entries from all

CVE-2025-69227 — AIOHTTP vulnerable to DoS when bypassing asserts

2026-09-28T13:47:27.739262+00:00

Affected: aio-libs aiohttp

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.

GHSA-jj3x-wxrx-4x23 — AIOHTTP vulnerable to DoS when bypassing asserts

2026-09-28T13:47:27.739417+00:00

Affected: PyPI: aiohttp

### 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

PYSEC-2026-1107 — AIOHTTP vulnerable to DoS when bypassing asserts

2026-09-28T13:47:27.739475+00:00

Affected: PyPI: aiohttp

### Summary When assert statements are bypassed, an infinite loop can occur, resulting in a DoS attack when processing a POST body.

------

Patch: https://github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259