CVE-2026-111063
Medium
Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the Secure attribute for a shared cookie is not enforced. An attacker can consequently cause a shared cookie marked Secure to be sent with an unencrypted request. This issue is fixed in version 3.14.4.
SeverityMedium
CVSS6.3
Exploit probability—
ProductAiohttp
PublishedOct 19, 2026
First seenOct 19, 2026
Weakness typeCWE-311CWE-311CWE-1004CWE-1004
How to fix
Update
- aiohttp3.14.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| aiohttpPyPI | v < 3.14.4 | 3.14.4 |
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