CVE-2025-69228 — Allocation of Resources Without Limits or Throttling in Aiohttp

CWE-770 — Allocation of Resources Without Limits or Throttling9 documents8 sources
Severity
6.6MEDIUMNVD
EPSS
0.1%
top 80.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Aio-libs AiohttpAiohttp
Timeline
PublishedJan 6
Latest updateFeb 13

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a request to be crafted in such a way that an AIOHTTP server's memory fills up uncontrollably during processing. 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. This issue is fixed in version 3.13.3.

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

Affected Packages3 packages

▶NVDaiohttp/aiohttp< 3.13.3
▶PyPIaiohttp/aiohttp< 3.13.3
▶CVEListV5aio-libs/aiohttp< 3.13.3

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
CVE-2025-69228: AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python↗2026-01-06
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GHSA
AIOHTTP vulnerable to denial of service through large payloads↗2026-01-05
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OSV
AIOHTTP vulnerable to denial of service through large payloads↗2026-01-05
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CVEList
AIOHTTP vulnerable to denial of service through large payloads↗2026-01-05
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📋Vendor Advisories

3
Ubuntu
AIOHTTP vulnerabilities↗2026-02-13
▶
Red Hat
aiohttp: aiohttp: Denial of Service via memory exhaustion from crafted POST request↗2026-01-05
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Debian
CVE-2025-69228: python-aiohttp - AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. ...↗2025
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🕵️Threat Intelligence

1
Wiz
CVE-2025-69228 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2025-69228 — Aio-libs Aiohttp vulnerability | cvebase