HTTP Request Smuggling Affecting request-1276 package, versions <0.24.1-r3


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.34% (57th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-REQUEST1276-10822610
  • published19 Jul 2025
  • disclosed14 Jul 2025

Introduced: 14 Jul 2025

CVE-2025-53643  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Chainguard request-1276 to version 0.24.1-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream request-1276 package and not the request-1276 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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 Base Scores

version 3.1