USN-8751-1

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Source
https://ubuntu.com/security/notices/USN-8751-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8751-1
Upstream
Related
Published
2026-09-14T03:34:34Z
Modified
2026-09-14T11:27:33Z
Summary
urwid vulnerabilities
Details

Katriel Moses discovered that Urwid used a weak PRNG. A local attacker could possibly use this issue to cause a denial of service or execute arbitrary code.

References

Affected packages

Ubuntu:Pro:18.04:LTS / urwid

Package

Name
urwid
Purl
pkg:deb/ubuntu/urwid?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.0.1-2ubuntu0.1~esm1

Affected versions

1.*
1.3.1-2ubuntu2
2.*
2.0.1-2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python-urwid",
            "binary_version": "2.0.1-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-urwid",
            "binary_version": "2.0.1-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-9323",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json"

Ubuntu:Pro:20.04:LTS / urwid

Package

Name
urwid
Purl
pkg:deb/ubuntu/urwid?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.0.1-3ubuntu0.1~esm1

Affected versions

2.*
2.0.1-2build2
2.0.1-2build3
2.0.1-2build4
2.0.1-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python3-urwid",
            "binary_version": "2.0.1-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-9323",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json"

Ubuntu:22.04:LTS / urwid

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.1.2-2ubuntu0.1

Affected versions

2.*
2.1.2-1build1
2.1.2-1build3
2.1.2-2
2.1.2-2build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-urwid",
            "binary_version": "2.1.2-2ubuntu0.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-9323",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json"

Ubuntu:Pro:26.04:LTS / urwid

Package

Name
urwid
Purl
pkg:deb/ubuntu/urwid?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.0.4-1ubuntu0.1~esm1

Affected versions

2.*
2.6.16-1
3.*
3.0.4-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python3-urwid",
            "binary_version": "3.0.4-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-9323",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8751-1.json"