CVE-2026-22815
AIOHTTP: Uncapped memory usage possible through aiohttp allowing unlimited trailer headers
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
12th
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, insufficient restrictions in header/trailer handling could cause uncapped memory usage. This issue has been patched in version 3.13.4.
| CWE | CWE-400 CWE-770 |
| Vendor | aio-libs |
| Product | aiohttp |
| Published | Apr 1, 2026 |
| Last Updated | Apr 4, 2026 |
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Affected Versions
aio-libs / aiohttp
< 3.13.4