ubuntu-cve-2026-54278
Vulnerability from osv_ubuntu
Published
2026-06-22 18:16
Modified
2026-06-29 11:36
Summary
Details

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be decompressed into memory, potentially leading to DoS (a zip bomb edge case). This vulnerability is fixed in 3.14.1.

Severity
6.6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "0.20.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@0.20.2-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.17.2-1",
        "0.17.4-1",
        "0.17.4-1build1",
        "0.20.2-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.0.1-1ubuntu0.1~esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.0.1-1ubuntu0.1~esm6?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.6.2-1ubuntu1+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.6.2-1ubuntu1+esm5?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.8.1-4ubuntu0.2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.8.1-4ubuntu0.2+esm2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.9.1-1ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.9.1-1ubuntu0.1+esm2?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.11.16-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.11.16-1ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.10.11-1build1",
        "3.11.16-1",
        "3.11.16-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.13.3-3ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "python-aiohttp",
        "purl": "pkg:deb/ubuntu/python-aiohttp@3.13.3-3ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.11.16-1",
        "3.13.1-1",
        "3.13.3-3",
        "3.13.3-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be decompressed into memory, potentially leading to DoS (a zip bomb edge case). This vulnerability is fixed in 3.14.1.",
  "id": "UBUNTU-CVE-2026-54278",
  "modified": "2026-06-29T11:36:36Z",
  "published": "2026-06-22T18:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-54278"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-54278"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g3cq-j2xw-wf74"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-54278"
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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