OESA-2026-3582

Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3582
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3582.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3582
Upstream
Published
2026-08-30T04:18:34Z
Modified
2026-08-30T04:32:23.011881990Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
python-aiohttp security update
Details

Async http client/server framework (asyncio).

Security Fix(es):

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. A WebSocket upgrade request with a body could cause the parser to switch protocols before the complete request body was received, leaving trailing bytes to be handled as upgraded-protocol or pipelined data rather than normal HTTP body data. This issue is fixed in version 3.14.2.(CVE-2026-69243)

Database specific
{
    "severity": "Medium"
}
References

Affected packages

openEuler:24.03-LTS-SP4 / python-aiohttp

Package

Name
python-aiohttp
Purl
pkg:rpm/openEuler/python-aiohttp&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.14.3-1.oe2403sp4

Ecosystem specific

{
    "x86_64": [
        "python-aiohttp-debuginfo-3.14.3-1.oe2403sp4.x86_64.rpm",
        "python-aiohttp-debugsource-3.14.3-1.oe2403sp4.x86_64.rpm",
        "python-aiohttp-help-3.14.3-1.oe2403sp4.x86_64.rpm",
        "python3-aiohttp-3.14.3-1.oe2403sp4.x86_64.rpm"
    ],
    "aarch64": [
        "python-aiohttp-debuginfo-3.14.3-1.oe2403sp4.aarch64.rpm",
        "python-aiohttp-debugsource-3.14.3-1.oe2403sp4.aarch64.rpm",
        "python-aiohttp-help-3.14.3-1.oe2403sp4.aarch64.rpm",
        "python3-aiohttp-3.14.3-1.oe2403sp4.aarch64.rpm"
    ],
    "src": [
        "python-aiohttp-3.14.3-1.oe2403sp4.src.rpm"
    ]
}

Database specific

source
"https://repo.openeuler.org/security/data/osv/OESA-2026-3582.json"