Allocation of Resources Without Limits or Throttling Affecting python3-aiohttp package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.33% (27th percentile)

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  • Snyk IDSNYK-RHEL7-PYTHON3AIOHTTP-22503629
  • published12 Nov 2026
  • disclosed9 Nov 2026

Introduced: 9 Nov 2026

NewCVE-2026-123817  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 python3-aiohttp.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-aiohttp package and not the python3-aiohttp package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the WebSocket reader retains one bytes object for each transport read while reassembling an incomplete frame. A malicious peer can split a frame into many tiny reads so per-object overhead substantially exceeds the payload bytes allowed by max_msg_size. The condition affects a server receiving frames from a malicious client and a client receiving frames from a malicious server, and can cause excessive memory consumption or denial of service. This issue is fixed in version 3.14.4.

CVSS Base Scores

version 3.1