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    Dashboard / CVE / CVE-2023-47627

    CVE-2023-47627

    aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. The HTTP parser in AIOHTTP has numerous problems with header parsing, which could lead to request smuggling. This parser is only used when AIOHTTP_NO_EXTENSIONS is enabled (or not using a prebuilt wheel). These bugs have been addressed in commit `d5c12ba89` which has been included in release version 3.8.6. Users are advised to upgrade. There are no known workarounds for these issues.

    Published:Nov 14, 2023
    Last Modified:Nov 3, 2025
    EPS:Nov 14, 2023
    EPSS Score:0.00181
    CVSS Score:5.3

    Affected Products

    Vendor
    Aiohttp
    Product
    Aiohttp
    Vendor
    Redhat
    Product
    Ansible Automation Platform
    Vendor
    Redhat
    Product
    Rhui
    Vendor
    Redhat
    Product
    Satellite
    Vendor
    Redhat
    Product
    Satellite Capsule

    Exploits

    https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfghttps://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg

    Common Attack Pattern Enumeration and Classification (CAPEC)

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

    Related CVEs

    CVE-2026-47265 (CVSS 6.6) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cooki…
    CVE-2026-34993 (CVSS 6.4) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using…
    CVE-2026-34525 (CVSS 6.3) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, multi…
    CVE-2026-34520 (CVSS 2.7) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C…
    CVE-2026-34519 (CVSS 2.7) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an at…
    CVE-2026-34518 (CVSS 2.7) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when …
    CVE-2026-34517 (CVSS 2.7) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for s…
    CVE-2026-34516 (CVSS 6.6) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a res…
    CVE-2026-34515 (CVSS 6.6) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Wi…
    CVE-2026-34514 (CVSS 2.7) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an at…

    References

    https://github.com/aio-libs/aiohttp/commit/d5c12ba890557a575c313bb3017910d7616fce3d
    https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg
    https://lists.fedoraproject.org/archives/list/[email protected]/message/FUSJVQ7OQ55RWL4XAX2F5EZ73N4ZSH6U/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/VDKQ6HM3KNDU4OQI476ZWT4O7DMSIT35/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/WQYQL6WV535EEKSNH7KRARLLMOW5WXDM/
    https://github.com/aio-libs/aiohttp/commit/d5c12ba890557a575c313bb3017910d7616fce3d
    https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg
    https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html
    https://lists.fedoraproject.org/archives/list/[email protected]/message/FUSJVQ7OQ55RWL4XAX2F5EZ73N4ZSH6U/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/VDKQ6HM3KNDU4OQI476ZWT4O7DMSIT35/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/WQYQL6WV535EEKSNH7KRARLLMOW5WXDM/

    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