UBUNTU-CVE-2026-3902

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Source
https://ubuntu.com/security/CVE-2026-3902
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3902.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-3902
Upstream
  • CVE-2026-3902
Downstream
Related
Published
2026-04-07T14:00:00Z
Modified
2026-04-13T12:54:25.245213Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. ASGIRequest allows a remote attacker to spoof headers by exploiting an ambiguous mapping of two header variants (with hyphens or with underscores) to a single version with underscores. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Tarek Nakkouch for reporting this issue.

References

Affected packages

Ubuntu:22.04:LTS / python-django

Package

Name
python-django
Purl
pkg:deb/ubuntu/python-django@2:3.2.12-2ubuntu1.26?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:3.2.12-2ubuntu1.26

Affected versions

2:2.*
2:2.2.24-1ubuntu1
2:3.*
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

Ecosystem specific 

{
    "availability": "No subscription required",
    "priority_reason": "Django developers have rated this as being a low severity issue",
    "binaries": [
        {
            "binary_version": "2:3.2.12-2ubuntu1.26",
            "binary_name": "python3-django"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3902.json"

Ubuntu:24.04:LTS / python-django

Package

Name
python-django
Purl
pkg:deb/ubuntu/python-django@3:4.2.11-1ubuntu1.15?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3:4.2.11-1ubuntu1.15

Affected versions

3:4.*
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

Ecosystem specific 

{
    "availability": "No subscription required",
    "priority_reason": "Django developers have rated this as being a low severity issue",
    "binaries": [
        {
            "binary_version": "3:4.2.11-1ubuntu1.15",
            "binary_name": "python3-django"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3902.json"

Ubuntu:25.10 / python-django

Package

Name
python-django
Purl
pkg:deb/ubuntu/python-django@3:5.2.4-1ubuntu2.4?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3:5.2.4-1ubuntu2.4

Affected versions

3:4.*
3:4.2.18-1ubuntu1
3:4.2.18-1ubuntu1.1
3:5.*
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

Ecosystem specific 

{
    "availability": "No subscription required",
    "priority_reason": "Django developers have rated this as being a low severity issue",
    "binaries": [
        {
            "binary_version": "3:5.2.4-1ubuntu2.4",
            "binary_name": "python3-django"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3902.json"