USN-9000-1

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Source
https://ubuntu.com/security/notices/USN-9000-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9000-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-9000-1
Upstream
Related
Published
2026-11-04T16:24:47Z
Modified
2026-11-05T11:58:19Z
Summary
twisted vulnerability
Details

It was discovered that Twisted's IMAP server mishandled wildcard patterns in mailbox list commands. An authenticated remote attacker could possibly use this issue to cause Twisted to use excessive resources, leading to a denial of service.

References

Affected packages

Ubuntu:22.04:LTS / twisted

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
22.1.0-2ubuntu2.8

Affected versions

20.*
20.3.0-7ubuntu1
20.3.0-7ubuntu3
22.*
22.1.0-2ubuntu2
22.1.0-2ubuntu2.1
22.1.0-2ubuntu2.3
22.1.0-2ubuntu2.4
22.1.0-2ubuntu2.5
22.1.0-2ubuntu2.6
22.1.0-2ubuntu2.7

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-twisted",
            "binary_version": "22.1.0-2ubuntu2.8"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-106454",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9000-1.json"

Ubuntu:24.04:LTS / twisted

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
24.3.0-1ubuntu0.3

Affected versions

22.*
22.4.0-4
22.4.0-4ubuntu1
23.*
23.10.0-2
24.*
24.3.0-1
24.3.0-1ubuntu0.1
24.3.0-1ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-twisted",
            "binary_version": "24.3.0-1ubuntu0.3"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-106454",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9000-1.json"

Ubuntu:26.10 / twisted

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
26.4.0-4ubuntu0.1

Affected versions

25.*
25.5.0-5
26.*
26.4.0-4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-twisted",
            "binary_version": "26.4.0-4ubuntu0.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-106454",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:26.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9000-1.json"

Ubuntu:26.04:LTS / twisted

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
25.5.0-5ubuntu0.2

Affected versions

24.*
24.11.0-1
25.*
25.5.0-4
25.5.0-5
25.5.0-5ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-twisted",
            "binary_version": "25.5.0-5ubuntu0.2"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-106454",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-9000-1.json"