UBUNTU-CVE-2026-126349

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Source
https://ubuntu.com/security/CVE-2026-126349
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-126349
Upstream
Published
2026-11-13T00:00:00Z
Modified
2026-11-13T21:05:51Z
Severity
  • 3.1 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. From 2.0.0 until 2.9.1, Addressable::IDNA.to_unicode can decode Punycode labels that contain bidirectional controls, zero-width characters, control characters, or other default-ignorable format characters. Addressable::URI#display_uri can consequently show a reordered or visually indistinguishable hostname even though host, normalized_host, and network connections use the original encoded hostname. The pure-Ruby backend accepts the full prohibited set, while the native libidn backend is affected from 2.5.2 for characters added after Unicode 3.2. This issue is fixed in version 2.9.1.

References

Affected packages

Ubuntu:26.10
ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=source&distro=stonking

Affected ranges

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

Affected versions

2.*
2.8.7-2
2.9.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-addressable",
            "binary_version": "2.9.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json"
Ubuntu:Pro:16.04:LTS
ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

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

Affected versions

2.*
2.3.8-1
2.3.8-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-addressable",
            "binary_version": "2.3.8-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json"
Ubuntu:Pro:18.04:LTS
ruby-addressable

Package

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

Affected ranges

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

Affected versions

2.*
2.5.1-2
2.5.2-1
2.5.2-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-addressable",
            "binary_version": "2.5.2-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json"
Ubuntu:Pro:20.04:LTS
ruby-addressable

Package

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

Affected ranges

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

Affected versions

2.*
2.5.2-1
2.7.0-1
2.7.0-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-addressable",
            "binary_version": "2.7.0-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json"
Ubuntu:Pro:22.04:LTS
ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

2.*
2.7.0-2
2.8.0-3
2.8.0-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-addressable",
            "binary_version": "2.8.0-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json"
Ubuntu:Pro:24.04:LTS
ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

2.*
2.8.1-1
2.8.5-1
2.8.5-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-addressable",
            "binary_version": "2.8.5-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json"
Ubuntu:Pro:26.04:LTS
ruby-addressable

Package

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

Affected ranges

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

Affected versions

2.*
2.8.7-2
2.8.7-2ubuntu0.26.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-addressable",
            "binary_version": "2.8.7-2ubuntu0.26.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126349.json"