HIGH7.5

PYSEC-2026-2111

Quick fix

PYSEC-2026-2111 — aiohttp: upgrade to the fixed version with the command below.

pip install --upgrade 'aiohttp>=3.14.1'

Details

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be decompressed into memory, potentially leading to DoS (a zip bomb edge case). This vulnerability is fixed in 3.14.1.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/aiohttp

Introduced in: 0Fixed in: 3.14.1

Fixpip install --upgrade 'aiohttp>=3.14.1'

References

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g3cq-j2xw-wf74[ADVISORY]
https://github.com/aio-libs/aiohttp/commit/4f7480e474cccc6a8cc2c92ad3f17a31dedf8232[FIX]