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CVE-2025-69227

6.6 medium SSVC exploitation: none Analyzed
NVD · CVE.org

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.6 · aiohttpNVD modified 2026-10-11 20:10

Affected (CPE criteria) 1

  • cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*

References 2