usn-8591-1
Vulnerability from osv_ubuntu
Published
2026-07-22 20:37
Modified
2026-07-22 20:37
Summary
python-aiohttp vulnerabilities
Details

Sean Gilligan discovered that AIOHTTP did not properly limit memory usage when processing HTTP headers and trailers. An attacker could possibly use this issue to consume excessive system resources, resulting in a denial of service. (CVE-2026-22815)

It was discovered that AIOHTTP did not properly limit the size of its DNS cache. An attacker could possibly use this issue to consume excessive system resources, resulting in a denial of service. (CVE-2026-34513)

Mingi Jung discovered that AIOHTTP did not properly sanitize the content_type parameter. An attacker could possibly use this issue to inject malicious HTTP headers, resulting in HTTP response splitting. (CVE-2026-34514)

It was discovered that AIOHTTP did not properly limit memory usage when processing multipart headers. An attacker could possibly use this issue to consume excessive system resources, resulting in a denial of service. (CVE-2026-34516)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "0.20.2-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@0.20.2-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.20.2-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.17.2-1",
        "0.17.4-1",
        "0.17.4-1build1",
        "0.20.2-1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.0.1-1ubuntu0.1~esm7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.0.1-1ubuntu0.1~esm7?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.1-1ubuntu0.1~esm7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.3-1build1",
        "2.2.3-2",
        "2.3.6-1",
        "3.0.1-1",
        "3.0.1-1ubuntu0.1~esm1",
        "3.0.1-1ubuntu0.1~esm4",
        "3.0.1-1ubuntu0.1~esm5",
        "3.0.1-1ubuntu0.1~esm6"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.6.2-1ubuntu1+esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.6.2-1ubuntu1+esm6?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.2-1ubuntu1+esm6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.4-1",
        "3.5.4-1build1",
        "3.6.1-1",
        "3.6.2-1",
        "3.6.2-1build1",
        "3.6.2-1ubuntu0.1~esm1",
        "3.6.2-1ubuntu1",
        "3.6.2-1ubuntu1+esm1",
        "3.6.2-1ubuntu1+esm3",
        "3.6.2-1ubuntu1+esm4",
        "3.6.2-1ubuntu1+esm5"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.8.1-4ubuntu0.2+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.8.1-4ubuntu0.2+esm3?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.8.1-4ubuntu0.2+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.4-1",
        "3.7.4-1build2",
        "3.8.1-3",
        "3.8.1-4",
        "3.8.1-4build1",
        "3.8.1-4ubuntu0.2",
        "3.8.1-4ubuntu0.2+esm1",
        "3.8.1-4ubuntu0.2+esm2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.9.1-1ubuntu0.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.9.1-1ubuntu0.1+esm3?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.1-1ubuntu0.1+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.4-1",
        "3.9.1-1",
        "3.9.1-1build1",
        "3.9.1-1ubuntu0.1",
        "3.9.1-1ubuntu0.1+esm1",
        "3.9.1-1ubuntu0.1+esm2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.13.3-3ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.13.3-3ubuntu1+esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.13.3-3ubuntu1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.11.16-1",
        "3.13.1-1",
        "3.13.3-3",
        "3.13.3-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Sean Gilligan discovered that AIOHTTP did not properly limit memory\nusage when processing HTTP headers and trailers. An attacker could\npossibly use this issue to consume excessive system resources, resulting\nin a denial of service. (CVE-2026-22815)\n\nIt was discovered that AIOHTTP did not properly limit the size of its\nDNS cache. An attacker could possibly use this issue to consume\nexcessive system resources, resulting in a denial of service.\n(CVE-2026-34513)\n\nMingi Jung discovered that AIOHTTP did not properly sanitize the\ncontent_type parameter. An attacker could possibly use this issue to\ninject malicious HTTP headers, resulting in HTTP response splitting.\n(CVE-2026-34514)\n\nIt was discovered that AIOHTTP did not properly limit memory usage when\nprocessing multipart headers. An attacker could possibly use this issue\nto consume excessive system resources, resulting in a denial of service.\n(CVE-2026-34516)",
  "id": "USN-8591-1",
  "modified": "2026-07-22T20:37:02Z",
  "published": "2026-07-22T20:37:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8591-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-22815"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34513"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34514"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34516"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "python-aiohttp vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-22815",
    "UBUNTU-CVE-2026-34513",
    "UBUNTU-CVE-2026-34514",
    "UBUNTU-CVE-2026-34516"
  ]
}



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