OESA-2026-2563 (CVE-2026-34993)

Vulnerability from osv_openeuler – Published: 2026-06-05 11:11 – Updated: 2026-08-06 11:11 – Source website
VLAI
Summary
python-aiohttp security update
Details

Async http client/server framework (asyncio).

Security Fix(es):

Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications.(CVE-2026-34993)

If a developer uses the cookies parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect.(CVE-2026-47265)

Severity
6.6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "python-aiohttp-debuginfo-3.14.0-1.oe2403sp3.aarch64.rpm",
          "python-aiohttp-debugsource-3.14.0-1.oe2403sp3.aarch64.rpm",
          "python-aiohttp-help-3.14.0-1.oe2403sp3.aarch64.rpm",
          "python3-aiohttp-3.14.0-1.oe2403sp3.aarch64.rpm"
        ],
        "src": [
          "python-aiohttp-3.14.0-1.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "python-aiohttp-debuginfo-3.14.0-1.oe2403sp3.x86_64.rpm",
          "python-aiohttp-debugsource-3.14.0-1.oe2403sp3.x86_64.rpm",
          "python-aiohttp-help-3.14.0-1.oe2403sp3.x86_64.rpm",
          "python3-aiohttp-3.14.0-1.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "python-aiohttp",
        "purl": "pkg:rpm/openEuler/python-aiohttp\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.0-1.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Async http client/server framework (asyncio).\r\n\r\nSecurity Fix(es):\n\nMost applications using this function will be doing so with the user\u0026apos;s own data, so this is unlikely to affect many applications.(CVE-2026-34993)\n\nIf a developer uses the `cookies` parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect.(CVE-2026-47265)",
  "id": "OESA-2026-2563",
  "modified": "2026-08-06T11:11:30Z",
  "published": "2026-06-05T11:11:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2563"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34993"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47265"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "python-aiohttp security update",
  "upstream": [
    "CVE-2026-34993",
    "CVE-2026-47265"
  ]
}



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