Inconsistent interpretation of HTTP requests in aiohttp - CVE-2025-69224

Vulnerability identifier: #VU120992

CSH Severity: Low

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-69224

CWE-ID: CWE-444

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of non-ASCII characters within HTTP requests. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks but requires that a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or AIOHTTP_NO_EXTENSIONS is enabled.

aiohttp
Debian Linux
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Desktop 15
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
Public Cloud Module
Python 3 Module
openSUSE Leap
Ubuntu
Anolis OS
Fusion Content-Aware Storage
watsonx Code Assistant On Prem
Robotic Process Automation for Cloud Pak
IBM Fusion HCI
Splunk Enterprise
python-aiohttp (Ubuntu package)
python3-aiohttp
python3-aiohttp-debuginfo
python-aiohttp-debugsource
python311-aiohttp
python311-aiohttp-debuginfo
python-aiohttp (Debian package)
python3-aiohttp+speedups

Install updates from vendor's website.

aiohttp - update to 3.13.3
Fusion Content-Aware Storage - update to 1.1.2
IBM Fusion HCI - update to 2.12.1
watsonx Code Assistant On Prem - update to 5.3.1
Splunk Enterprise - addressed in versions 9.3.10, 9.4.9, 10.0.4, 10.2.1
Robotic Process Automation for Cloud Pak - addressed in versions 23.0.20.6, 30.0.2
python-aiohttp (Ubuntu package) - addressed in versions 3.0.1-1ubuntu0.1~esm6, 3.6.2-1ubuntu1+esm5, 3.8.1-4ubuntu0.2+esm2, 3.9.1-1ubuntu0.1+esm2, 3.11.16-1ubuntu0.1
python3-aiohttp - update to 3.6.0-150100.3.32.1
python3-aiohttp-debuginfo - update to 3.6.0-150100.3.32.1
python-aiohttp-debugsource - addressed in versions 3.6.0-150100.3.32.1, 3.9.3-150400.10.36.1
python311-aiohttp - update to 3.9.3-150400.10.36.1
python311-aiohttp-debuginfo - update to 3.9.3-150400.10.36.1
python-aiohttp (Debian package) - update to 3.11.16-1+deb13u1
python3-aiohttp+speedups - update to 3.13.3-1
python3-aiohttp - update to 3.13.3-1

• https://github.com/aio-libs/aiohttp/security/advisories/GHSA-69f9-5gxw-wvc2

• Multiple vulnerabilities in aiohttp
• Ubuntu update for python-aiohttp
• Multiple vulnerabilities in IBM watsonx Code Assistant On Prem
• SUSE update for python-aiohttp
• SUSE update for python-aiohttp
• Anolis OS update for python-aiohttp
• Multiple vulnerabilities in Splunk Enterprise
• Multiple vulnerabilities in IBM Fusion Content-Aware Storage
• Debian update for python-aiohttp
• Multiple vulnerabilities in IBM Robotic Process Automation for Cloud Pak