AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.12.14, the Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. 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. Version 3.12.14 contains a patch for this issue.
CVSS Details
- CVSS 4.0 Base Score: 1.7 (LOW)
- CVSS 4.0 Vector: (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/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | No solution existsUpgrade python-aiohttp | Jul 16, 2025 | Jul 14, 2025 |
| Splunk | — | Upgrade Splunk Enterprise to version 10.0.3Upgrade Splunk Enterprise to version 9.2.12Upgrade Splunk Enterprise to version 9.4.8Upgrade Splunk Enterprise to version 9.3.9 | Mar 20, 2026 | Jul 14, 2025 |
| Suse | — | Upgrade python3-aiohttpUpgrade python311-aiohttp | Dec 5, 2025 | Sep 3, 2025 |
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