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    CVE-2023-37276

    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.

    Published:Jul 19, 2023
    Last Modified:Nov 21, 2024
    EPS:Jul 19, 2023
    EPSS Score:0.05775
    CVSS Score:5.3

    Affected Products

    Vendor
    Aio-libs Project
    Product
    Aiohttp
    Vendor
    Aiohttp
    Product
    Aiohttp
    Vendor
    Redhat
    Product
    Rhui
    Vendor
    Redhat
    Product
    Satellite
    Vendor
    Redhat
    Product
    Satellite Capsule

    Exploits

    https://github.com/aio-libs/aiohttp/security/advisories/GHSA-45c4-8wx5-qw6whttps://hackerone.com/reports/2001873https://github.com/aio-libs/aiohttp/security/advisories/GHSA-45c4-8wx5-qw6whttps://hackerone.com/reports/2001873

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-273 HTTP Response Smuggling
    CAPEC-33 HTTP Request Smuggling

    Related CVEs

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High