AZL-65252

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Import Source

https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-65252.json

JSON Data

https://api.test.osv.dev/v1/vulns/AZL-65252

Upstream

CVE-2025-53643

Published

2025-07-14T21:15:27Z

Modified

2026-04-01T05:20:30.683511Z

Summary

CVE-2025-53643 affecting package python-aiohttp 3.6.2-3

Details

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.

References

https://nvd.nist.gov/vuln/detail/CVE-2025-53643

Affected packages

Azure Linux:3 / python-aiohttp

Package

Name: python-aiohttp
Purl: pkg:rpm/azure-linux/python-aiohttp

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Last affected

3.6.2-3

Database specific

source

"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-65252.json"