USN-8154-1 (UBUNTU-CVE-2026-3902)

Vulnerability from osv_ubuntu – Published: 2026-04-07 17:31 – Updated: 2026-04-27 14:11 – Source website
VLAI
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": [
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
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          }
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      },
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      },
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      ]
    },
    {
      "database_specific": {
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              "id": "CVE-2026-4277",
              "severity": [
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                  "type": "CVSS_V3"
                },
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                }
              ]
            },
            {
              "id": "CVE-2026-4292",
              "severity": [
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                  "type": "CVSS_V3"
                },
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                }
              ]
            },
            {
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              "severity": [
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                },
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              ]
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          ],
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        }
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          }
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      },
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        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "python-django",
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      },
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    },
    {
      "database_specific": {
        "cves_map": {
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            {
              "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"
                },
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                }
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                },
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                }
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        }
      },
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      },
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    },
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      "database_specific": {
        "cves_map": {
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            {
              "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",
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      },
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            },
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "3:4.2.8-1",
        "3:4.2.9-1",
        "3:4.2.11-1",
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        "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": {
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              "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": [
            {
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            {
              "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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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • 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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.