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CVE-2026-111065

AIOHTTP: Connector pool exhaustion via Max-Age overflow

MEDIUM
6.9
CVSS Score
Published: October 19, 2026 at 04:57 PM UTC
Updated: October 19, 2026 at 08:55 PM UTC
1 product affected across 1 vendorAiohttp

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Aiohttp· Aio Libspypi
90%
v < 3.14.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRM
Source: cverecord
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6cjc-53gc-5rqm
x_refsource_MISC
Source: cverecord
https://github.com/aio-libs/aiohttp/commit/9dd8eaf4e31f1237ef2c1574a8c82a739fca5805
x_refsource_MISC
Source: cverecord
https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M
Vector?

Quick Info

StatusUNDERGOING ANALYSIS
CWE
CWE-770

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