UBUNTU-CVE-2026-126353

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Source
https://ubuntu.com/security/CVE-2026-126353
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126353.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-126353
Upstream
Published
2026-11-13T00:00:00Z
Modified
2026-11-13T21:05:51Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H 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 2.3.0 until 2.9.1, URI template expressions containing several exploded variables generate ambiguous regular expressions that can divide a run of members among the variables in polynomially many ways. Template#match or Template#extract processing of an attacker-controlled URI can therefore consume a thread and cause denial of service. The flaw affects MRI Ruby before 3.2 and JRuby, TruffleRuby 40.0, and plus or number-sign expressions on MRI Ruby 3.2. MRI Ruby 3.3 and later, URI parsing, and Template#expand are unaffected. 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-2026-126353.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-2026-126353.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-2026-126353.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-2026-126353.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-2026-126353.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-2026-126353.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-2026-126353.json"