ubuntu-cve-2025-68480
Vulnerability from osv_ubuntu
Published
2025-12-22 22:16
Modified
2026-04-30 08:52
Summary
Details

Marshmallow is a lightweight library for converting complex objects to and from simple Python datatypes. In versions from 3.0.0rc1 to before 3.26.2 and from 4.0.0 to before 4.1.2, Schema.load(data, many=True) is vulnerable to denial of service attacks. A moderately sized request can consume a disproportionate amount of CPU time. This issue has been patched in version 3.26.2 and 4.1.2.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-marshmallow",
            "binary_version": "3.4.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "python-marshmallow",
        "purl": "pkg:deb/ubuntu/python-marshmallow@3.4.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.0-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.0b14-1",
        "3.2.1-1",
        "3.2.2-1",
        "3.3.0-1",
        "3.4.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-marshmallow",
            "binary_version": "3.13.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "python-marshmallow",
        "purl": "pkg:deb/ubuntu/python-marshmallow@3.13.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.13.0-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.10.0-1",
        "3.13.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-marshmallow",
            "binary_version": "3.20.1-1.1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "python-marshmallow",
        "purl": "pkg:deb/ubuntu/python-marshmallow@3.20.1-1.1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.20.1-1.1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.18.0-1",
        "3.20.1-1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-marshmallow",
            "binary_version": "3.26.1-0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "python-marshmallow",
        "purl": "pkg:deb/ubuntu/python-marshmallow@3.26.1-0.2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.26.1-0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-marshmallow",
            "binary_version": "3.26.1-0.4ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "python-marshmallow",
        "purl": "pkg:deb/ubuntu/python-marshmallow@3.26.1-0.4ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.26.1-0.4ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.26.1-0.2",
        "3.26.1-0.3",
        "3.26.1-0.4"
      ]
    }
  ],
  "aliases": [],
  "details": "Marshmallow is a lightweight library for converting complex objects to and from simple Python datatypes. In versions from 3.0.0rc1 to before 3.26.2 and from 4.0.0 to before 4.1.2, Schema.load(data, many=True) is vulnerable to denial of service attacks. A moderately sized request can consume a disproportionate amount of CPU time. This issue has been patched in version 3.26.2 and 4.1.2.",
  "id": "UBUNTU-CVE-2025-68480",
  "modified": "2026-04-30T08:52:34Z",
  "published": "2025-12-22T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-68480"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-68480"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/security/advisories/GHSA-428g-f7cq-pgp5"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/commit/218d98a785d3bd25dad8880bb07e9cce70340f31"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/commit/70141f4180fb94ced3544cdefdaff89172dd3956"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/commit/36f87877d0e889e682386a0121eabe030cde57b1"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/commit/0356a3f1c307830f8ded56d823abca5611c594c9"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/commit/6d4a17dad54ea9711040c6aa6ba4d59267242a41"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/commit/489a8d421dc7955bb53b89e962d69465fbc5b6af"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/marshmallow-code/marshmallow/commit/d24a0c9df061c4daa92f71cf85aca25b83eee508"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8225-1"
    }
  ],
  "related": [
    "USN-8225-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-68480"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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