CVE-2026-34514
AIOHTTP: CRLF injection in multipart part content type header construction
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
14th
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.
| CWE | CWE-113 |
| Vendor | aio-libs |
| Product | aiohttp |
| Published | Apr 1, 2026 |
| Last Updated | Apr 2, 2026 |
Stay Ahead of the Next One
Get instant alerts for aio-libs aiohttp
Be the first to know when new unknown vulnerabilities affecting aio-libs aiohttp are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
aio-libs / aiohttp
< 3.13.4