UBUNTU-CVE-2026-32874

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Source
https://ubuntu.com/security/CVE-2026-32874
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-32874
Upstream
Published
2026-03-20T02:16:00Z
Modified
2026-03-25T17:36:53Z
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

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large (outside of the range [-2^63, 2^64 - 1]) integers. The leaked memory is a copy of the string form of the integer plus an additional NULL byte. The leak occurs irrespective of whether the integer parses successfully or is rejected due to having more than sys.getintmaxstrdigits() digits, meaning that any sized leak per malicious JSON can be achieved provided that there is no limit on the overall size of the payload. Any service that calls ujson.load()/ujson.loads()/ujson.decode() on untrusted inputs is affected and vulnerable to denial of service attacks. This issue has been fixed in version 5.12.0.

References

Affected packages

Ubuntu:14.04:LTS
pandas

Package

Name
pandas
Purl
pkg:deb/ubuntu/pandas@0.13.1-2ubuntu2?arch=source&distro=trusty

Affected ranges

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

Affected versions

0.*
0.12.0-2ubuntu1
0.13.1-2ubuntu1
0.13.1-2ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-pandas",
            "binary_version": "0.13.1-2ubuntu2"
        },
        {
            "binary_name": "python-pandas-lib",
            "binary_version": "0.13.1-2ubuntu2"
        },
        {
            "binary_name": "python3-pandas",
            "binary_version": "0.13.1-2ubuntu2"
        },
        {
            "binary_name": "python3-pandas-lib",
            "binary_version": "0.13.1-2ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:16.04:LTS
collada2gltf

Package

Name
collada2gltf
Purl
pkg:deb/ubuntu/collada2gltf@20140924-3?arch=source&distro=xenial

Affected ranges

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

Affected versions

Other
20140924-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcollada2gltfconvert-dev",
            "binary_version": "20140924-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
pandas

Package

Name
pandas
Purl
pkg:deb/ubuntu/pandas@0.17.1-3ubuntu2?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.15.0-2
0.15.0-2ubuntu1
0.15.0-2ubuntu2
0.17.1-3ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-pandas",
            "binary_version": "0.17.1-3ubuntu2"
        },
        {
            "binary_name": "python-pandas-lib",
            "binary_version": "0.17.1-3ubuntu2"
        },
        {
            "binary_name": "python3-pandas",
            "binary_version": "0.17.1-3ubuntu2"
        },
        {
            "binary_name": "python3-pandas-lib",
            "binary_version": "0.17.1-3ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:18.04:LTS
collada2gltf

Package

Name
collada2gltf
Purl
pkg:deb/ubuntu/collada2gltf@20140924-4?arch=source&distro=bionic

Affected ranges

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

Affected versions

Other
20140924-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcollada2gltfconvert-dev",
            "binary_version": "20140924-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
pandas

Package

Name
pandas
Purl
pkg:deb/ubuntu/pandas@0.22.0-4ubuntu1?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.19.2-5.1ubuntu4
0.22.0-2ubuntu1
0.22.0-3
0.22.0-4
0.22.0-4ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-pandas",
            "binary_version": "0.22.0-4ubuntu1"
        },
        {
            "binary_name": "python-pandas-lib",
            "binary_version": "0.22.0-4ubuntu1"
        },
        {
            "binary_name": "python3-pandas",
            "binary_version": "0.22.0-4ubuntu1"
        },
        {
            "binary_name": "python3-pandas-lib",
            "binary_version": "0.22.0-4ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:20.04:LTS
pandas

Package

Name
pandas
Purl
pkg:deb/ubuntu/pandas@0.25.3+dfsg-7?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.23.3+dfsg-4ubuntu1
0.23.3+dfsg-4ubuntu5
0.23.3+dfsg-4ubuntu6
0.25.3+dfsg-4
0.25.3+dfsg-4build1
0.25.3+dfsg-7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pandas",
            "binary_version": "0.25.3+dfsg-7"
        },
        {
            "binary_name": "python3-pandas-lib",
            "binary_version": "0.25.3+dfsg-7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:22.04:LTS
collada2gltf

Package

Name
collada2gltf
Purl
pkg:deb/ubuntu/collada2gltf@20140924-8?arch=source&distro=jammy

Affected ranges

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

Affected versions

Other
20140924-7build1
20140924-8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcollada2gltfconvert-dev",
            "binary_version": "20140924-8"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
pandas

Package

Name
pandas
Purl
pkg:deb/ubuntu/pandas@1.3.5+dfsg-3?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.1.5+dfsg-2
1.1.5+dfsg-2ubuntu1
1.3.5+dfsg-2
1.3.5+dfsg-2ubuntu1
1.3.5+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pandas",
            "binary_version": "1.3.5+dfsg-3"
        },
        {
            "binary_name": "python3-pandas-lib",
            "binary_version": "1.3.5+dfsg-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:24.04:LTS
pandas

Package

Name
pandas
Purl
pkg:deb/ubuntu/pandas@2.1.4+dfsg-7?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.5.3+dfsg-6
1.5.3+dfsg-6ubuntu1
1.5.3+dfsg-7ubuntu1
1.5.3+dfsg-10
2.*
2.1.4+dfsg-4ubuntu2
2.1.4+dfsg-7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pandas",
            "binary_version": "2.1.4+dfsg-7"
        },
        {
            "binary_name": "python3-pandas-lib",
            "binary_version": "2.1.4+dfsg-7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
ujson

Package

Name
ujson
Purl
pkg:deb/ubuntu/ujson@5.9.0-1build1?arch=source&distro=noble

Affected ranges

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

Affected versions

5.*
5.8.0-1
5.8.0-1build1
5.9.0-1
5.9.0-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-ujson",
            "binary_version": "5.9.0-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:25.10
pandas

Package

Name
pandas
Purl
pkg:deb/ubuntu/pandas@2.2.3+dfsg-9?arch=source&distro=questing

Affected ranges

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

Affected versions

2.*
2.2.3+dfsg-8build1
2.2.3+dfsg-9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pandas",
            "binary_version": "2.2.3+dfsg-9"
        },
        {
            "binary_name": "python3-pandas-lib",
            "binary_version": "2.2.3+dfsg-9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
ujson

Package

Name
ujson
Purl
pkg:deb/ubuntu/ujson@5.10.0-1build2?arch=source&distro=questing

Affected ranges

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

Affected versions

5.*
5.10.0-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-ujson",
            "binary_version": "5.10.0-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:Pro:16.04:LTS
ujson

Package

Name
ujson
Purl
pkg:deb/ubuntu/ujson@1.33-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

1.*
1.33-1
1.33-1build1
1.33-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-ujson",
            "binary_version": "1.33-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "python3-ujson",
            "binary_version": "1.33-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:Pro:18.04:LTS
ujson

Package

Name
ujson
Purl
pkg:deb/ubuntu/ujson@1.35-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*
1.35-1build2
1.35-2
1.35-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-ujson",
            "binary_version": "1.35-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-ujson",
            "binary_version": "1.35-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:Pro:20.04:LTS
ujson

Package

Name
ujson
Purl
pkg:deb/ubuntu/ujson@1.35-4ubuntu0.1+esm1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

1.*
1.35-3build1
1.35-3build2
1.35-4
1.35-4build1
1.35-4ubuntu0.1
1.35-4ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-ujson",
            "binary_version": "1.35-4ubuntu0.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"
Ubuntu:Pro:22.04:LTS
ujson

Package

Name
ujson
Purl
pkg:deb/ubuntu/ujson@5.1.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy

Affected ranges

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

Affected versions

4.*
4.0.2-1
4.0.2-1build1
4.2.0-1
5.*
5.1.0-1
5.1.0-1build1
5.1.0-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-ujson",
            "binary_version": "5.1.0-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32874.json"