USN-8154-2

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

Affected packages

Ubuntu:Pro:14.04:LTS / python-django

Package

Name: python-django
Purl: pkg:deb/ubuntu/python-django@1.6.11-0ubuntu1.3+esm11?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.6.11-0ubuntu1.3+esm11

Affected versions

1.*

1.5.4-1ubuntu1

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

1.6.1-2ubuntu0.16

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

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-django",
            "binary_version": "1.6.11-0ubuntu1.3+esm11"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-4292"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-33033"
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8154-2.json"

Ubuntu:Pro:16.04:LTS / python-django

Package

Name: python-django
Purl: pkg:deb/ubuntu/python-django@1.8.7-1ubuntu5.15+esm12?arch=source&distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.8.7-1ubuntu5.15+esm12

Affected versions

1.*

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

Ecosystem specific

{
    "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"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8154-2.json"

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-4277"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-4292"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-33033"
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}