USN-8154-2 (UBUNTU-CVE-2026-4277)

Vulnerability from osv_ubuntu – Published: 2026-04-09 17:30 – Updated: 2026-06-25 10:47 – Source website
VLAI
Summary
python-django vulnerabilities
Details

USN-8154-1 fixed vulnerabilities in Django. This update provides the corresponding updates for CVE-2026-33033 and CVE-2026-4292 in Ubuntu 14.04 LTS and Ubuntu 16.04 LTS, and CVE-2026-4277 in Ubuntu 16.04 LTS.

Original advisory details:

Seokchan Yoon discovered that Django incorrectly handled copying memory when parsing multipart uploads with excessive whitespace. A remote attacker could possibly use this issue to cause Django to use excessive resources, leading to a denial of service. (CVE-2026-33033)

It was discovered that Django did not enforce an upload memory size limit in the Content-Length header. A remote attacker could possibly use this issue to cause Django to use excessive resources, leading to a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2026-33034)

Tarek Nakkouch discovered that Django incorrectly handled underscores in the ASGI headers. A remote attacker could possibly use this issue to spoof HTTP headers. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-3902)

It was discovered that Django incorrectly handled verification of model data created with POST requests. A remote attacker could possibly use this issue to forge new model permissions. (CVE-2026-4277, CVE-2026-4292)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-4292",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-33033",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-django",
            "binary_version": "1.6.11-0ubuntu1.3+esm11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "python-django",
        "purl": "pkg:deb/ubuntu/python-django@1.6.11-0ubuntu1.3+esm11?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.11-0ubuntu1.3+esm11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "1.6-1",
        "1.6.1-1",
        "1.6.1-2",
        "1.6.1-2ubuntu0.1",
        "1.6.1-2ubuntu0.2",
        "1.6.1-2ubuntu0.3",
        "1.6.1-2ubuntu0.4",
        "1.6.1-2ubuntu0.5",
        "1.6.1-2ubuntu0.6",
        "1.6.1-2ubuntu0.8",
        "1.6.1-2ubuntu0.9",
        "1.6.1-2ubuntu0.10",
        "1.6.1-2ubuntu0.11",
        "1.6.1-2ubuntu0.12",
        "1.6.1-2ubuntu0.13",
        "1.6.1-2ubuntu0.14",
        "1.6.1-2ubuntu0.15",
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        "1.6.11-0ubuntu1",
        "1.6.11-0ubuntu1.1",
        "1.6.11-0ubuntu1.2",
        "1.6.11-0ubuntu1.3",
        "1.6.11-0ubuntu1.3+esm1",
        "1.6.11-0ubuntu1.3+esm2",
        "1.6.11-0ubuntu1.3+esm3",
        "1.6.11-0ubuntu1.3+esm4",
        "1.6.11-0ubuntu1.3+esm5",
        "1.6.11-0ubuntu1.3+esm6",
        "1.6.11-0ubuntu1.3+esm7",
        "1.6.11-0ubuntu1.3+esm8",
        "1.6.11-0ubuntu1.3+esm9",
        "1.6.11-0ubuntu1.3+esm10"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-4277",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-4292",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-33033",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-django",
            "binary_version": "1.8.7-1ubuntu5.15+esm12"
          },
          {
            "binary_name": "python-django-common",
            "binary_version": "1.8.7-1ubuntu5.15+esm12"
          },
          {
            "binary_name": "python3-django",
            "binary_version": "1.8.7-1ubuntu5.15+esm12"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "python-django",
        "purl": "pkg:deb/ubuntu/python-django@1.8.7-1ubuntu5.15+esm12?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.7-1ubuntu5.15+esm12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.9-1ubuntu5",
        "1.8.5-2ubuntu1",
        "1.8.7-1ubuntu1",
        "1.8.7-1ubuntu2",
        "1.8.7-1ubuntu3",
        "1.8.7-1ubuntu4",
        "1.8.7-1ubuntu5",
        "1.8.7-1ubuntu5.1",
        "1.8.7-1ubuntu5.2",
        "1.8.7-1ubuntu5.4",
        "1.8.7-1ubuntu5.5",
        "1.8.7-1ubuntu5.6",
        "1.8.7-1ubuntu5.7",
        "1.8.7-1ubuntu5.8",
        "1.8.7-1ubuntu5.9",
        "1.8.7-1ubuntu5.10",
        "1.8.7-1ubuntu5.11",
        "1.8.7-1ubuntu5.12",
        "1.8.7-1ubuntu5.13",
        "1.8.7-1ubuntu5.14",
        "1.8.7-1ubuntu5.15",
        "1.8.7-1ubuntu5.15+esm1",
        "1.8.7-1ubuntu5.15+esm3",
        "1.8.7-1ubuntu5.15+esm4",
        "1.8.7-1ubuntu5.15+esm5",
        "1.8.7-1ubuntu5.15+esm6",
        "1.8.7-1ubuntu5.15+esm7",
        "1.8.7-1ubuntu5.15+esm8",
        "1.8.7-1ubuntu5.15+esm9",
        "1.8.7-1ubuntu5.15+esm10",
        "1.8.7-1ubuntu5.15+esm11"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8154-1 fixed vulnerabilities in Django. This update provides the\ncorresponding updates for CVE-2026-33033 and CVE-2026-4292 in Ubuntu 14.04\nLTS and Ubuntu 16.04 LTS, and CVE-2026-4277 in Ubuntu 16.04 LTS.\n\nOriginal advisory details:\n\n Seokchan Yoon discovered that Django incorrectly handled copying memory\n when parsing multipart uploads with excessive whitespace. A remote\n attacker could possibly use this issue to cause Django to use excessive\n resources, leading to a denial of service. (CVE-2026-33033)\n\n It was discovered that Django did not enforce an upload memory size limit\n in the Content-Length header. A remote attacker could possibly use this\n issue to cause Django to use excessive resources, leading to a denial of\n service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10.\n (CVE-2026-33034)\n\n Tarek Nakkouch discovered that Django incorrectly handled underscores in\n the ASGI headers. A remote attacker could possibly use this issue to spoof\n HTTP headers. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS,\n and Ubuntu 25.10. (CVE-2026-3902)\n\n It was discovered that Django incorrectly handled verification of model\n data created with POST requests. A remote attacker could possibly use this\n issue to forge new model permissions. (CVE-2026-4277, CVE-2026-4292)",
  "id": "USN-8154-2",
  "modified": "2026-06-25T10:47:36Z",
  "published": "2026-04-09T17:30:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8154-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-4277"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-4292"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-33033"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "python-django vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-4277",
    "UBUNTU-CVE-2026-4292",
    "UBUNTU-CVE-2026-33033"
  ]
}



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