CVE-2026-34515
High
Description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This issue has been patched in version 3.13.4.
SeverityHigh
CVSS7.5
Exploit probability—
ProductAiohttp
PublishedApr 1, 2026
First seenApr 1, 2026
How to fix
Update
- aiohttp aiohttp3.13.4 or later
- aiohttp3.13.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| aiohttp aiohttp | v < 3.13.4 | 3.13.4 |
| aiohttpPyPI | v < 3.13.4 | 3.13.4 |
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