CVE-2025-69230 — Logging of Excessive Data in Aiohttp

CWE-779 — Logging of Excessive Data8 documents7 sources
Severity
2.7LOWNVD
EPSS
0.0%
top 97.47%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Aio-libs AiohttpAiohttp
Timeline
PublishedJan 6

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, reading multiple invalid cookies can lead to a logging storm. If the cookies attribute is accessed in an application, then an attacker may be able to trigger a storm of warning-level logs using a specially crafted Cookie header. This issue is fixed in 3.13.3.

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/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-2025-69230: AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python↗2026-01-06
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GHSA
AIOHTTP Vulnerable to Cookie Parser Warning Storm↗2026-01-05
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CVEList
AIOHTTP Vulnerable to Cookie Parser Warning Storm↗2026-01-05
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OSV
AIOHTTP Vulnerable to Cookie Parser Warning Storm↗2026-01-05
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📋Vendor Advisories

2
Red Hat
aiohttp: aiohttp: Denial of Service via specially crafted invalid cookies↗2026-01-05
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Debian
CVE-2025-69230: python-aiohttp - AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. ...↗2025
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🕵️Threat Intelligence

1
Wiz
CVE-2025-69230 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2025-69230 — Logging of Excessive Data in Aiohttp | cvebase