UBUNTU-CVE-2026-126350

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Source
https://ubuntu.com/security/CVE-2026-126350
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126350.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-126350
Upstream
Published
2026-11-13T00:00:00Z
Modified
2026-11-13T21:05:25Z
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 using the explode modifier with the slash, dot, semicolon, question-mark, or ampersand operators generate ambiguous regular expressions. When Template#match or Template#extract processes an attacker-controlled URI beginning with the operator's leading character, optional member separators allow catastrophic backtracking and denial of service on MRI Ruby before 3.2 and JRuby. Addressable 2.9.0 incompletely remediated the earlier template issue because its tests did not reach these operator-prefixed paths. 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-2026-126350.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-2026-126350.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-2026-126350.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-2026-126350.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-2026-126350.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-2026-126350.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-2026-126350.json"