UNKNOWN PyPI
AIOHTTP Affected by Denial of Service (DoS) via Unbounded DNS Cache in TCPConnector
GHSA-hcc4-c3v8-rx92 · CVE-2026-34513
Published · Modified
Description
Summary
An unbounded DNS cache could result in excessive memory usage possibly resulting in a DoS situation.
Impact
If an application makes requests to a very large number of hosts, this could cause the DNS cache to continue growing and slowly use excessive amounts of memory.
Patch: https://github.com/aio-libs/aiohttp/commit/c4d77c3533122be353b8afca8e8675e3b4cbda98
References
- WEB https://github.com/aio-libs/aiohttp/security/advisories/GHSA-hcc4-c3v8-rx92
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-34513
- WEB https://github.com/aio-libs/aiohttp/commit/c4d77c3533122be353b8afca8e8675e3b4cbda98
- PACKAGE https://github.com/aio-libs/aiohttp
- WEB https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4
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