UBUNTU-CVE-2026-114605

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Source
https://ubuntu.com/security/CVE-2026-114605
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-114605
Upstream
Published
2026-10-26T00:00:00Z
Modified
2026-10-27T04:17:42Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

dnspython is a DNS toolkit for Python. Prior to 2.9.0, dns.name.from_wire_parser follows attacker-controlled DNS compression pointer chains without a hop limit. A malicious DNS wire-format message can force excessive pointer traversal during name decompression, causing high CPU use, application degradation, or denial of service in applications that process untrusted DNS messages. This issue is fixed in version 2.9.0.

References

Affected packages

Ubuntu:14.04:LTS
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.11.0-1
1.11.1-1
1.11.1-1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-dnspython",
            "binary_version":  "1.11.1-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"
Ubuntu:16.04:LTS
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.12.0-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-dnspython",
            "binary_version":  "1.12.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"
Ubuntu:18.04:LTS
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.15.0-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-dnspython",
            "binary_version":  "1.15.0-1"
        },
        {
            "binary_name":  "python3-dnspython",
            "binary_version":  "1.15.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"
Ubuntu:20.04:LTS
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.16.0-1
1.16.0-1build1
1.16.0-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python-dnspython",
            "binary_version":  "1.16.0-1ubuntu1"
        },
        {
            "binary_name":  "python3-dnspython",
            "binary_version":  "1.16.0-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"
Ubuntu:22.04:LTS
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.0+really1.16.0-2ubuntu2
2.0.0+really1.16.0-2ubuntu3
2.1.0-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-dnspython",
            "binary_version":  "2.1.0-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"
Ubuntu:24.04:LTS
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.4.1-1ubuntu2
2.4.2-1ubuntu1
2.6.1-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-dnspython",
            "binary_version":  "2.6.1-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"
Ubuntu:26.04:LTS
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.7.0-1ubuntu1
2.7.0-1ubuntu2
2.8.0-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-dnspython",
            "binary_version":  "2.8.0-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"
Ubuntu:26.10
dnspython

Package

Name
dnspython
Purl
pkg:deb/ubuntu/dnspython?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.8.0-1ubuntu1
2.8.0-3ubuntu1
2.8.0-5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "python3-dnspython",
            "binary_version":  "2.8.0-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-114605.json"