GitHub Advisoryadvisory · PyPI

GHSA-6jhg-hg63-jvvf AIOHTTP vulnerable to denial of service through large payloads

MEDIUM Published 2026-01-05 Modified 2026-01-06 Official page ↗
Aliases
CVE-2025-69228
Ecosystem
PyPI
Packages
aiohttp
Severity
Moderate
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Weaknesses
CWE-770
Reviewed
2026-01-05

Affected packages

• PyPI aiohttp: < 3.13.3 → fixed in 3.13.3

Description

Summary A request can be crafted in such a way that an aiohttp server's memory fills up uncontrollably during processing. Impact If an application includes a handler that uses the `Request.post()` method, an attacker may be able to freeze the server by exhausting the memory. ----- Patch: https://github.com/aio-libs/aiohttp/commit/b7dbd35375aedbcd712cbae8ad513d56d11cce60

Related

Alias · CVE (1)

  • CVE-2025-69228 AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. vulnerability

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References