aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. aiohttp v3.8.4 and earlier are bundled with llhttp v6.0.6. Vulnerable code is used by aiohttp for its HTTP request parser when available which is the default case when installing from a wheel. This vulnerability only affects users of aiohttp as an HTTP server (ie `aiohttp.Application`), you are not affected by this vulnerability if you are using aiohttp as an HTTP client library (ie `aiohttp.ClientSession`). Sending a crafted HTTP request will cause the server to misinterpret one of the HTTP header values leading to HTTP request smuggling. This issue has been addressed in version 3.8.5. Users are advised to upgrade. Users unable to upgrade can reinstall aiohttp using `AIOHTTP_NO_EXTENSIONS=1` as an environment variable to disable the llhttp HTTP request parser implementation. The pure Python implementation isn't vulnerable.
CVE-2023-37276 - High Severity Vulnerability
Async http client/server framework (asyncio)
Library home page: https://files.pythonhosted.org/packages/f1/cc/828ce95d4d638f54936bbd1f896a75ba937839b17a63a57c1c491db6c26d/aiohttp-2.2.2.tar.gz
Path to dependency file: /test/acceptance/workspaces/setup_py-app
Path to vulnerable library: /test/acceptance/workspaces/setup_py-app
Dependency Hierarchy: - :x: **aiohttp-2.2.2.tar.gz** (Vulnerable Library)
Found in HEAD commit: 9505f4ca92405cc9273dc3726c2d274ce28a4407
Found in base branch: ALL_HANDS/major-secrets
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. aiohttp v3.8.4 and earlier are bundled with llhttp v6.0.6. Vulnerable code is used by aiohttp for its HTTP request parser when available which is the default case when installing from a wheel. This vulnerability only affects users of aiohttp as an HTTP server (ie `aiohttp.Application`), you are not affected by this vulnerability if you are using aiohttp as an HTTP client library (ie `aiohttp.ClientSession`). Sending a crafted HTTP request will cause the server to misinterpret one of the HTTP header values leading to HTTP request smuggling. This issue has been addressed in version 3.8.5. Users are advised to upgrade. Users unable to upgrade can reinstall aiohttp using `AIOHTTP_NO_EXTENSIONS=1` as an environment variable to disable the llhttp HTTP request parser implementation. The pure Python implementation isn't vulnerable.
Publish Date: 2023-07-19
URL: CVE-2023-37276
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-45c4-8wx5-qw6w
Release Date: 2023-07-19
Fix Resolution: 3.8.5
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