CVE-2026-111065Medium· 6.9▾ SunlitAIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Max-Age processing can overflow and skip closing a connection. An attacker can consequently exhaust the connection pool temporarily until ga…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 38 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Max-Age processing can overflow and skip closing a connection. An attacker can consequently exhaust the connection pool temporarily until garbage collection resolves the connections. This issue is fixed in version 3.14.4.
aiohttp < 3.14.4Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-111064High· 8.2aiohttp server lacks an initial request/header timeout
GHSA-2g87-pp6c-29x5Highaiohttp: Multiple instances of excessive or unbounded memory/CPU use
CVE-2026-111748Medium· 6.3AIOHTTP: Absolute-form request targets can spoof Request.scheme
CVE-2026-111750Medium· 6.3AIOHTTP: Pure-Python parser request smuggling
CVE-2026-111749Low· 2.3AIOHTTP: Cookie from subdomain can remove Host-Only Scope from existing cookies