PYSEC-2026-1106
AIOHTTP vulnerable to DoS through chunked messages
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2025-69229
- Alias
- GHSA-g84x-mcqj-x9qq
- CVSS_V4
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Description
### Summary Handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of chunks. ### Impact 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. ----- Patch: https://github.com/aio-libs/aiohttp/commit/dc3170b56904bdf814228fae70a5501a42a6c712 Patch: https://github.com/aio-libs/aiohttp/commit/4ed97a4e46eaf61bd0f05063245f613469700229
Paquets affectés
| Paquet | Versions |
|---|---|
| PyPI · aiohttp | introduced 0, fixed 3.13.3 |
Références
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g84x-mcqj-x9qq WEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-69229 ADVISORY
- https://github.com/aio-libs/aiohttp/commit/4ed97a4e46eaf61bd0f05063245f613469700229 WEB
- https://github.com/aio-libs/aiohttp/commit/dc3170b56904bdf814228fae70a5501a42a6c712 WEB
- https://github.com/aio-libs/aiohttp PACKAGE
- https://pypi.org/project/aiohttp PACKAGE
- https://github.com/advisories/GHSA-g84x-mcqj-x9qq ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |