IOHTTP 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.
13 Feb 2026, 18:55
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g84x-mcqj-x9qq - Patch, Vendor Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
14 Jan 2026, 19:17
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Aiohttp
Aiohttp aiohttp |
|
| References | () https://github.com/aio-libs/aiohttp/commit/4ed97a4e46eaf61bd0f05063245f613469700229 - Patch | |
| References | () https://github.com/aio-libs/aiohttp/commit/dc3170b56904bdf814228fae70a5501a42a6c712 - Patch | |
| References | () https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g84x-mcqj-x9qq - Vendor Advisory, Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| CPE | cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:* |
06 Jan 2026, 00:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2026-01-06 00:15
Updated : 2026-02-13 18:55
NVD link : CVE-2025-69229
Mitre link : CVE-2025-69229
CVE.ORG link : CVE-2025-69229
JSON object : View
Allocation of Resources Without Limits or Throttling