REDHAT-BUG-2380000: Low severity pypi/aiohttp vulnerability

Published Jul 14, 2025
·
Updated

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 AIOHTTPNOEXTENSIONS 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.

Affected Software

1 affected component
pypi/aiohttp<3.12.14

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade aiohttp to a version that resolves this vulnerability.

    Fixed in 3.12.14
  2. Configuration

    Enable AIOHTTP_NO_EXTENSIONS to avoid using the pure-Python path that is vulnerable to HTTP request smuggling prior to aiohttp 3.12.14.

    aiohttp AIOHTTP_NO_EXTENSIONS = enabled (True)

Event History

Jul 14, 2025
Data Sourced
via Red Hat·09:01 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2380000?

The severity of REDHAT-BUG-2380000 is considered high due to its potential for HTTP request smuggling, leading to significant security implications.

2

How do I fix REDHAT-BUG-2380000?

To fix REDHAT-BUG-2380000, upgrade the aiohttp package to version 3.12.14 or higher where the vulnerability has been addressed.

3

What versions of aiohttp are affected by REDHAT-BUG-2380000?

Versions of aiohttp prior to 3.12.14 are affected by REDHAT-BUG-2380000.

4

What type of vulnerability is REDHAT-BUG-2380000?

REDHAT-BUG-2380000 is a request smuggling vulnerability that arises from improper parsing of HTTP request trailer sections.

5

What is the main consequence of REDHAT-BUG-2380000?

The main consequence of REDHAT-BUG-2380000 is that it allows attackers to manipulate HTTP requests, potentially leading to unauthorized actions or data exposure.

Contact

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