P4Verified

CVE-2025-69224: aiohttp before 3.13.3 (exclusive), < 3.13.3

CVE-2025-69224. CVSS 3.1 base score 6.5 (MEDIUM, NVD). EPSS 0.0025 (percentile 0.1503), scored 10-Oct-2026.

Affected technology

aiohttp · before 3.13.3 (exclusive)
aiohttp

aiohttp · < 3.13.3
aio-libs

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

The source says if a pure Python version of AIOHTTP is installed (i.e. without the usual C extensions) or AIOHTTP_NO_EXTENSIONS is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Vendor/CNA’s CVSS 4.0 assessment (base score 6.3/10) rates confidentiality and integrity impact as low; availability impact as none.

Published 11-Oct-2026 23:39 UTC

CWE: CWE-444
CCR priority: 26.1 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N · NVD
EPSS: 0.0025 · percentile 0.15059 · 2026-10-11
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-11 23:42:05.235979+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-11 23:39:08.456424+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-69224.html