Bug 2454107 (CVE-2026-34513) - CVE-2026-34513 aiohttp: AIOHTTP: Denial of Service due to unbounded DNS cache
Summary: CVE-2026-34513 aiohttp: AIOHTTP: Denial of Service due to unbounded DNS cache
Keywords:
Status: NEW
Alias: CVE-2026-34513
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-01 21:02 UTC by OSIDB Bzimport
Modified: 2026-04-01 22:25 UTC (History)
66 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-01 21:02:52 UTC 
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an unbounded DNS cache could result in excessive memory usage possibly resulting in a DoS situation. This issue has been patched in version 3.13.4.
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