UBUNTU-CVE-2026-113602

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Source
https://ubuntu.com/security/CVE-2026-113602
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-113602.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-113602
Upstream
Published
2026-10-20T16:17:00Z
Modified
2026-10-28T20:15:45Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

json-smart through 2.6.0 contains an input validation bypass vulnerability that allows attackers to evade strict-mode trailing-data checks by inserting a literal 0x1A character. Attackers can append 0x1A and malformed content to pass JSONValue.parseStrict or isValidJsonStrict validation, creating parser differentials with downstream parsers like Jackson or Gson.

References

Affected packages

Ubuntu:18.04:LTS
json-smart

Package

Name
json-smart
Purl
pkg:deb/ubuntu/json-smart?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*
2.2-1
2.2-2
2.2-2ubuntu0.18.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjson-smart-java",
            "binary_version": "2.2-2ubuntu0.18.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-113602.json"
Ubuntu:20.04:LTS
json-smart

Package

Name
json-smart
Purl
pkg:deb/ubuntu/json-smart?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.2-2
2.2-2ubuntu0.20.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjson-smart-java",
            "binary_version": "2.2-2ubuntu0.20.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-113602.json"
Ubuntu:22.04:LTS
json-smart

Package

Name
json-smart
Purl
pkg:deb/ubuntu/json-smart?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.2-2
2.2-2ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjson-smart-java",
            "binary_version": "2.2-2ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-113602.json"
Ubuntu:24.04:LTS
json-smart

Package

Name
json-smart
Purl
pkg:deb/ubuntu/json-smart?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*
2.2-2ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjson-smart-java",
            "binary_version": "2.2-2ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-113602.json"
Ubuntu:26.04:LTS
json-smart

Package

Name
json-smart
Purl
pkg:deb/ubuntu/json-smart?arch=source&distro=resolute

Affected ranges

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

Affected versions

2.*
2.5.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjson-smart-java",
            "binary_version": "2.5.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-113602.json"
Ubuntu:26.10
json-smart

Package

Name
json-smart
Purl
pkg:deb/ubuntu/json-smart?arch=source&distro=stonking

Affected ranges

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

Affected versions

2.*
2.5.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjson-smart-java",
            "binary_version": "2.5.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-113602.json"