usn-8154-1
Vulnerability from osv_ubuntu
Published
2026-04-07 17:31
Modified
2026-04-27 14:11
Summary
python-django vulnerabilities
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-2026-4277",
              "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:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-django",
            "binary_version": "1:1.11.11-1ubuntu1.21+esm15"
          },
          {
            "binary_name": "python-django-common",
            "binary_version": "1:1.11.11-1ubuntu1.21+esm15"
          },
          {
            "binary_name": "python3-django",
            "binary_version": "1:1.11.11-1ubuntu1.21+esm15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-django",
        "purl": "pkg:deb/ubuntu/python-django@1:1.11.11-1ubuntu1.21+esm15?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.11.11-1ubuntu1.21+esm15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.11.4-1ubuntu1",
        "1:1.11.6-1ubuntu1",
        "1:1.11.9-1ubuntu1",
        "1:1.11.11-1ubuntu1",
        "1:1.11.11-1ubuntu1.1",
        "1:1.11.11-1ubuntu1.2",
        "1:1.11.11-1ubuntu1.3",
        "1:1.11.11-1ubuntu1.4",
        "1:1.11.11-1ubuntu1.5",
        "1:1.11.11-1ubuntu1.6",
        "1:1.11.11-1ubuntu1.7",
        "1:1.11.11-1ubuntu1.8",
        "1:1.11.11-1ubuntu1.9",
        "1:1.11.11-1ubuntu1.10",
        "1:1.11.11-1ubuntu1.11",
        "1:1.11.11-1ubuntu1.12",
        "1:1.11.11-1ubuntu1.13",
        "1:1.11.11-1ubuntu1.14",
        "1:1.11.11-1ubuntu1.15",
        "1:1.11.11-1ubuntu1.16",
        "1:1.11.11-1ubuntu1.17",
        "1:1.11.11-1ubuntu1.18",
        "1:1.11.11-1ubuntu1.19",
        "1:1.11.11-1ubuntu1.20",
        "1:1.11.11-1ubuntu1.21",
        "1:1.11.11-1ubuntu1.21+esm1",
        "1:1.11.11-1ubuntu1.21+esm2",
        "1:1.11.11-1ubuntu1.21+esm3",
        "1:1.11.11-1ubuntu1.21+esm4",
        "1:1.11.11-1ubuntu1.21+esm5",
        "1:1.11.11-1ubuntu1.21+esm6",
        "1:1.11.11-1ubuntu1.21+esm7",
        "1:1.11.11-1ubuntu1.21+esm8",
        "1:1.11.11-1ubuntu1.21+esm9",
        "1:1.11.11-1ubuntu1.21+esm10",
        "1:1.11.11-1ubuntu1.21+esm11",
        "1:1.11.11-1ubuntu1.21+esm12",
        "1:1.11.11-1ubuntu1.21+esm13",
        "1:1.11.11-1ubuntu1.21+esm14"
      ]
    },
    {
      "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:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python3-django",
            "binary_version": "2:2.2.12-1ubuntu0.29+esm8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "python-django",
        "purl": "pkg:deb/ubuntu/python-django@2:2.2.12-1ubuntu0.29+esm8?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:2.2.12-1ubuntu0.29+esm8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.11.22-1ubuntu1",
        "2:2.2.6-1ubuntu1",
        "2:2.2.9-2ubuntu1",
        "2:2.2.10-1",
        "2:2.2.10-1ubuntu1",
        "2:2.2.11-1",
        "2:2.2.12-1",
        "2:2.2.12-1ubuntu0.1",
        "2:2.2.12-1ubuntu0.2",
        "2:2.2.12-1ubuntu0.3",
        "2:2.2.12-1ubuntu0.4",
        "2:2.2.12-1ubuntu0.5",
        "2:2.2.12-1ubuntu0.6",
        "2:2.2.12-1ubuntu0.7",
        "2:2.2.12-1ubuntu0.8",
        "2:2.2.12-1ubuntu0.9",
        "2:2.2.12-1ubuntu0.10",
        "2:2.2.12-1ubuntu0.11",
        "2:2.2.12-1ubuntu0.12",
        "2:2.2.12-1ubuntu0.13",
        "2:2.2.12-1ubuntu0.14",
        "2:2.2.12-1ubuntu0.15",
        "2:2.2.12-1ubuntu0.16",
        "2:2.2.12-1ubuntu0.17",
        "2:2.2.12-1ubuntu0.18",
        "2:2.2.12-1ubuntu0.19",
        "2:2.2.12-1ubuntu0.20",
        "2:2.2.12-1ubuntu0.21",
        "2:2.2.12-1ubuntu0.22",
        "2:2.2.12-1ubuntu0.23",
        "2:2.2.12-1ubuntu0.24",
        "2:2.2.12-1ubuntu0.25",
        "2:2.2.12-1ubuntu0.26",
        "2:2.2.12-1ubuntu0.27",
        "2:2.2.12-1ubuntu0.28",
        "2:2.2.12-1ubuntu0.29",
        "2:2.2.12-1ubuntu0.29+esm1",
        "2:2.2.12-1ubuntu0.29+esm2",
        "2:2.2.12-1ubuntu0.29+esm3",
        "2:2.2.12-1ubuntu0.29+esm4",
        "2:2.2.12-1ubuntu0.29+esm5",
        "2:2.2.12-1ubuntu0.29+esm6",
        "2:2.2.12-1ubuntu0.29+esm7"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-3902",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "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:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-django",
            "binary_version": "2:3.2.12-2ubuntu1.26"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "python-django",
        "purl": "pkg:deb/ubuntu/python-django@2:3.2.12-2ubuntu1.26?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.2.12-2ubuntu1.26"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:2.2.24-1ubuntu1",
        "2:3.2.12-2",
        "2:3.2.12-2ubuntu1",
        "2:3.2.12-2ubuntu1.1",
        "2:3.2.12-2ubuntu1.2",
        "2:3.2.12-2ubuntu1.3",
        "2:3.2.12-2ubuntu1.4",
        "2:3.2.12-2ubuntu1.5",
        "2:3.2.12-2ubuntu1.6",
        "2:3.2.12-2ubuntu1.7",
        "2:3.2.12-2ubuntu1.8",
        "2:3.2.12-2ubuntu1.9",
        "2:3.2.12-2ubuntu1.10",
        "2:3.2.12-2ubuntu1.11",
        "2:3.2.12-2ubuntu1.12",
        "2:3.2.12-2ubuntu1.13",
        "2:3.2.12-2ubuntu1.14",
        "2:3.2.12-2ubuntu1.15",
        "2:3.2.12-2ubuntu1.16",
        "2:3.2.12-2ubuntu1.17",
        "2:3.2.12-2ubuntu1.18",
        "2:3.2.12-2ubuntu1.19",
        "2:3.2.12-2ubuntu1.20",
        "2:3.2.12-2ubuntu1.21",
        "2:3.2.12-2ubuntu1.22",
        "2:3.2.12-2ubuntu1.23",
        "2:3.2.12-2ubuntu1.24",
        "2:3.2.12-2ubuntu1.25"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-3902",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "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"
                }
              ]
            },
            {
              "id": "CVE-2026-33034",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-django",
            "binary_version": "3:4.2.11-1ubuntu1.15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "python-django",
        "purl": "pkg:deb/ubuntu/python-django@3:4.2.11-1ubuntu1.15?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3:4.2.11-1ubuntu1.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3:4.2.4-1ubuntu2",
        "3:4.2.8-1",
        "3:4.2.9-1",
        "3:4.2.11-1",
        "3:4.2.11-1ubuntu1",
        "3:4.2.11-1ubuntu1.1",
        "3:4.2.11-1ubuntu1.2",
        "3:4.2.11-1ubuntu1.3",
        "3:4.2.11-1ubuntu1.4",
        "3:4.2.11-1ubuntu1.5",
        "3:4.2.11-1ubuntu1.6",
        "3:4.2.11-1ubuntu1.7",
        "3:4.2.11-1ubuntu1.8",
        "3:4.2.11-1ubuntu1.9",
        "3:4.2.11-1ubuntu1.10",
        "3:4.2.11-1ubuntu1.11",
        "3:4.2.11-1ubuntu1.12",
        "3:4.2.11-1ubuntu1.13",
        "3:4.2.11-1ubuntu1.14"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-3902",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "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"
                }
              ]
            },
            {
              "id": "CVE-2026-33034",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-django",
            "binary_version": "3:5.2.4-1ubuntu2.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "python-django",
        "purl": "pkg:deb/ubuntu/python-django@3:5.2.4-1ubuntu2.4?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3:5.2.4-1ubuntu2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3:4.2.18-1ubuntu1",
        "3:4.2.18-1ubuntu1.1",
        "3:5.2.4-1",
        "3:5.2.4-1ubuntu1",
        "3:5.2.4-1ubuntu2",
        "3:5.2.4-1ubuntu2.1",
        "3:5.2.4-1ubuntu2.2",
        "3:5.2.4-1ubuntu2.3"
      ]
    }
  ],
  "aliases": [],
  "details": "Seokchan Yoon discovered that Django incorrectly handled copying memory\nwhen parsing multipart uploads with excessive whitespace. A remote attacker\ncould possibly use this issue to cause Django to use excessive resources,\nleading to a denial of service. (CVE-2026-33033)\n\nIt was discovered that Django did not enforce an upload memory size limit\nin the Content-Length header. A remote attacker could possibly use this\nissue to cause Django to use excessive resources, leading to a denial of\nservice. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10.\n(CVE-2026-33034)\n\nTarek Nakkouch discovered that Django incorrectly handled underscores in\nthe ASGI headers. A remote attacker could possibly use this issue to spoof\nHTTP headers. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS,\nand Ubuntu 25.10. (CVE-2026-3902)\n\nIt was discovered that Django incorrectly handled verification of model\ndata created with POST requests. A remote attacker could possibly use this\nissue to forge new model permissions. (CVE-2026-4277, CVE-2026-4292)",
  "id": "USN-8154-1",
  "modified": "2026-04-27T14:11:51Z",
  "published": "2026-04-07T17:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8154-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3902"
    },
    {
      "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"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-33034"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "python-django vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-3902",
    "UBUNTU-CVE-2026-4277",
    "UBUNTU-CVE-2026-4292",
    "UBUNTU-CVE-2026-33033",
    "UBUNTU-CVE-2026-33034"
  ]
}



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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.