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2.7 Low

CVE-2026-34514 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 version 3.13.4, an attacker who controls the content_type parameter in aiohttp could use this to inject extra headers or similar exploits. This issue has been patched in version 3.13.4.

Affected products and versions

Product Affected versions Fixed in
aiohttp 3.13 earliest → < 3.13.4 3.13.4
The 53 CVEs of aiohttp →
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