7.1
High
CVE-2026-69244 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python
Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses and malformed request or response bytes at the buffer end. This issue is fixed in version 3.14.3.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| aiohttp 3.14 | earliest → < 3.14.3 | 3.14.3 |
References
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
Other CVEs of aiohttp
The 53 CVEs of aiohttp →
CVE-2026-111750
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python
6.3
Medium
CVE-2026-111749
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python
2.3
Low
CVE-2026-111748
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python
6.3
Medium
CVE-2026-111066
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python
8.2
High