UBUNTU-CVE-2026-31048

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Source
https://ubuntu.com/security/CVE-2026-31048
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-31048
Upstream
  • CVE-2026-31048
Published
2026-04-13T20:16:00Z
Modified
2026-05-20T16:24:55Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue in the pickle protocol of Pyro v3.x allows attackers to execute arbitrary code via supplying a crafted pickled string message.

References

Affected packages

Ubuntu:16.04:LTS
pyro

Package

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

Affected ranges

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

Affected versions

1:3.*
1:3.14-1.2
1:3.14-2
1:3.14-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro",
            "binary_version": "1:3.14-4"
        },
        {
            "binary_name": "pyro-examples",
            "binary_version": "1:3.14-4"
        },
        {
            "binary_name": "pyro-gui",
            "binary_version": "1:3.14-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
pyro4

Package

Name
pyro4
Purl
pkg:deb/ubuntu/pyro4?arch=source&distro=xenial

Affected ranges

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

Affected versions

4.*
4.23-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro4",
            "binary_version": "4.23-2"
        },
        {
            "binary_name": "pyro4-examples",
            "binary_version": "4.23-2"
        },
        {
            "binary_name": "python2-pyro4",
            "binary_version": "4.23-2"
        },
        {
            "binary_name": "python3-pyro4",
            "binary_version": "4.23-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
Ubuntu:18.04:LTS
pyro

Package

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

Affected ranges

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

Affected versions

1:3.*
1:3.16-1
1:3.16-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro",
            "binary_version": "1:3.16-2"
        },
        {
            "binary_name": "pyro-examples",
            "binary_version": "1:3.16-2"
        },
        {
            "binary_name": "pyro-gui",
            "binary_version": "1:3.16-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
pyro4

Package

Name
pyro4
Purl
pkg:deb/ubuntu/pyro4?arch=source&distro=bionic

Affected ranges

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

Affected versions

4.*
4.61-1
4.62-1
4.63-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro4",
            "binary_version": "4.63-1"
        },
        {
            "binary_name": "pyro4-examples",
            "binary_version": "4.63-1"
        },
        {
            "binary_name": "python2-pyro4",
            "binary_version": "4.63-1"
        },
        {
            "binary_name": "python3-pyro4",
            "binary_version": "4.63-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
Ubuntu:20.04:LTS
pyro4

Package

Name
pyro4
Purl
pkg:deb/ubuntu/pyro4?arch=source&distro=focal

Affected ranges

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

Affected versions

4.*
4.75-1
4.76-1
4.79-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro4",
            "binary_version": "4.79-1"
        },
        {
            "binary_name": "pyro4-examples",
            "binary_version": "4.79-1"
        },
        {
            "binary_name": "python3-pyro4",
            "binary_version": "4.79-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
Ubuntu:22.04:LTS
pyro4

Package

Name
pyro4
Purl
pkg:deb/ubuntu/pyro4?arch=source&distro=jammy

Affected ranges

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

Affected versions

4.*
4.80-1
4.81-2
4.82-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro4",
            "binary_version": "4.82-1"
        },
        {
            "binary_name": "pyro4-examples",
            "binary_version": "4.82-1"
        },
        {
            "binary_name": "python3-pyro4",
            "binary_version": "4.82-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
Ubuntu:24.04:LTS
pyro4

Package

Name
pyro4
Purl
pkg:deb/ubuntu/pyro4?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.82-2
4.82-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro4",
            "binary_version": "4.82-4"
        },
        {
            "binary_name": "pyro4-examples",
            "binary_version": "4.82-4"
        },
        {
            "binary_name": "python3-pyro4",
            "binary_version": "4.82-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
pyro5

Package

Name
pyro5
Purl
pkg:deb/ubuntu/pyro5?arch=source&distro=noble

Affected ranges

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

Affected versions

5.*
5.14-2
5.14-2ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro5-examples",
            "binary_version": "5.14-2ubuntu0.1"
        },
        {
            "binary_name": "python3-pyro5",
            "binary_version": "5.14-2ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
Ubuntu:25.10
pyro5

Package

Name
pyro5
Purl
pkg:deb/ubuntu/pyro5?arch=source&distro=questing

Affected ranges

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

Affected versions

5.*
5.15-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro5-examples",
            "binary_version": "5.15-1ubuntu1"
        },
        {
            "binary_name": "python3-pyro5",
            "binary_version": "5.15-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"
Ubuntu:26.04:LTS
pyro5

Package

Name
pyro5
Purl
pkg:deb/ubuntu/pyro5?arch=source&distro=resolute

Affected ranges

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

Affected versions

5.*
5.15-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pyro5-examples",
            "binary_version": "5.15-1ubuntu1"
        },
        {
            "binary_name": "python3-pyro5",
            "binary_version": "5.15-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-31048.json"