REDHAT-BUG-2327130: Medium severity aiohttp aiohttp vulnerability
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or AIOHTTPNOEXTENSIONS is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
aiohttpto a version that resolves this vulnerability.Fixed in 3.10.11 - Configuration
Ensure `AIOHTTP_NO_EXTENSIONS` is disabled (do not enable it) so that the pure-Python/no-extensions configuration does not allow the newline parsing issue that can lead to request smuggling.
aiohttp AIOHTTP_NO_EXTENSIONS = enabled/true - Compensating control
If aiohttp cannot be upgraded immediately, add/adjust compensating network controls to mitigate request smuggling risks (e.g., tighten firewall/proxy rules to prevent bypass of firewall or proxy protections under smuggling conditions).
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2327130?
The severity of REDHAT-BUG-2327130 is critical due to the potential for request smuggling vulnerabilities.
How do I fix REDHAT-BUG-2327130?
To fix REDHAT-BUG-2327130, update aiohttp to version 3.10.11 or later.
What vulnerabilities are associated with REDHAT-BUG-2327130?
REDHAT-BUG-2327130 is associated with request smuggling vulnerabilities caused by improper parsing of newlines in chunk extensions.
Which versions of aiohttp are affected by REDHAT-BUG-2327130?
Versions of aiohttp prior to 3.10.11 are affected by REDHAT-BUG-2327130.
Is there a workaround for REDHAT-BUG-2327130?
There are no recommended workarounds for REDHAT-BUG-2327130 other than upgrading to a patched version.