Fluid Attacks Database

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of chunks. If an application makes use of the request.read() method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g. 1 second) while processing the request. This could potentially lead to DoS as the server would be unable to handle other requests during that time. This issue is fixed in version 3.13.3.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
debian 11	python-aiohttp	=3.7.4-1 \|\| =3.7.4-1+deb11u1 \|\| >=0 <3.7.4-1+deb11u2	3.7.4-1+deb11u2
debian 13	python-aiohttp	=3.11.16-1 \|\| >=0 <3.11.16-1+deb13u1	3.11.16-1+deb13u1
pypi	aiohttp	>=0 <3.13.3	3.13.3
debian 14	python-aiohttp	=3.11.16-1 \|\| =3.12.15-1 \|\| =3.13.0-1 \|\| =3.13.1-1 \|\| >=0 <3.13.3-1	3.13.3-1
debian 12	python-aiohttp	=3.10.0-1 \|\| =3.10.1-1 \|\| =3.10.10-1 \|\| =3.10.10-2 \|\| =3.10.11-1 \|\| =3.10.3-1 \|\| =3.10.3-2 \|\| =3.10.3-3 \|\| =3.10.4-1 \|\| =3.10.5-1 \|\| =3.10.6-1 \|\| =3.10.8-1 \|\| =3.11.15-1 \|\| =3.11.16-1 \|\| =3.12.15-1 \|\| =3.13.0-1 \|\| =3.13.1-1 \|\| =3.13.3-1 \|\| =3.13.3-2 \|\| =3.13.3-3 \|\| =3.13.5-1 \|\| =3.8.4-1 \|\| =3.8.4-1+deb12u1 \|\| =3.8.5-1 \|\| =3.8.6-1 \|\| =3.9.1-1 \|\| =3.9.5-1	-

Aliases

1. CVE-2025-692292. NVD-2025-692293. OSV-DEBIAN-2025-692294. OSV-2025-692295. GHSA-g84x-mcqj-x9qq6. GCVE-2025-692297. SECURITY-TRACKER-CVE-2025-69229

References

1. https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g84x-mcqj-x9qq2. https://github.com/aio-libs/aiohttp/commit/4ed97a4e46eaf61bd0f05063245f6134697002293. https://github.com/aio-libs/aiohttp/commit/dc3170b56904bdf814228fae70a5501a42a6c712

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