CVE-2026-111750: CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') in aio-libs aiohttp
Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the pure Python parser accepts ambiguous HTTP request framing. An unauthenticated attacker can consequently smuggle requests when an application uses AIOHTTP_NO_EXTENSIONS or otherwise runs without a standard wheel and an intermediary interprets the framing differently. This issue is fixed in version 3.14.4.
CVSS v4.0
Score 6.3medium
Affected software
aio-libs
aiohttp
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-16T17:52:09.081Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad651102cdf04f65676be66
Added to database: 10/19/2026, 17:19:12 UTC
Last updated: 10/19/2026, 17:19:12 UTC
Views: 1
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