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    CVE-2026-54273

    AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, no limit was present on the number of pipelined requests that could be queued. An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.

    Published:Jun 22, 2026
    Last Modified:Jun 22, 2026
    EPS:Jun 22, 2026
    EPSS Score:
    CVSS Score:6.6

    Affected Products

    Vendor
    Aio-libs
    Product
    Aiohttp

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-69244 (CVSS 7.1) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bou…
    CVE-2026-69243 (CVSS 6.3) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP pars…
    CVE-2026-59881 (CVSS 6.9) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the WebSocket…
    CVE-2026-54280 (CVSS 1.7) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, payload resou…
    CVE-2026-54278 (CVSS 6.6) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanu…
    CVE-2026-54277 (CVSS 6.6) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possibl…
    CVE-2026-54276 (CVSS 6.3) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, DigestAuthMid…
    CVE-2026-54275 (CVSS 2.7) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, the server_ho…
    CVE-2026-54274 (CVSS 6.6) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacke…
    CVE-2026-54279 (CVSS 1.3) — AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, host-only coo…

    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