UBUNTU-CVE-2026-44545

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Source
https://ubuntu.com/security/CVE-2026-44545
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44545.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-44545
Upstream
  • CVE-2026-44545
Published
2026-06-03T14:16:00Z
Modified
2026-06-17T11:01:30.958921074Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 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

daphne before 4.2.2 did not pass maxFramePayloadSize or maxMessagePayloadSize to Autobahn's WebSocketServerFactory. Because Autobahn defaults both values to 0 (unlimited), an unauthenticated remote attacker could send arbitrarily large WebSocket messages or frames, causing excessive memory consumption and a denial of service.

References

Affected packages

Ubuntu:18.04:LTS
python-daphne

Package

Name
python-daphne
Purl
pkg:deb/ubuntu/python-daphne?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.4.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.2-1",
            "binary_name": "daphne"
        },
        {
            "binary_version": "1.4.2-1",
            "binary_name": "python3-daphne"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44545.json"
Ubuntu:20.04:LTS
python-daphne

Package

Name
python-daphne
Purl
pkg:deb/ubuntu/python-daphne?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.3.0-1
2.4.0-1
2.4.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.4.1-1",
            "binary_name": "daphne"
        },
        {
            "binary_version": "2.4.1-1",
            "binary_name": "python3-daphne"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44545.json"
Ubuntu:22.04:LTS
python-daphne

Package

Name
python-daphne
Purl
pkg:deb/ubuntu/python-daphne?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.0.1-1
3.0.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.2-1",
            "binary_name": "daphne"
        },
        {
            "binary_version": "3.0.2-1",
            "binary_name": "python3-daphne"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44545.json"
Ubuntu:24.04:LTS
python-daphne

Package

Name
python-daphne
Purl
pkg:deb/ubuntu/python-daphne?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.0.0-1",
            "binary_name": "daphne"
        },
        {
            "binary_version": "4.0.0-1",
            "binary_name": "python3-daphne"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44545.json"
Ubuntu:25.10
python-daphne

Package

Name
python-daphne
Purl
pkg:deb/ubuntu/python-daphne?arch=source&distro=questing

Affected ranges

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

Affected versions

4.*
4.1.2-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.1.2-2",
            "binary_name": "daphne"
        },
        {
            "binary_version": "4.1.2-2",
            "binary_name": "python3-daphne"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44545.json"
Ubuntu:26.04:LTS
python-daphne

Package

Name
python-daphne
Purl
pkg:deb/ubuntu/python-daphne?arch=source&distro=resolute

Affected ranges

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

Affected versions

4.*
4.1.2-2
4.2.1-1
4.2.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.2.1-2",
            "binary_name": "daphne"
        },
        {
            "binary_version": "4.2.1-2",
            "binary_name": "python3-daphne"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44545.json"