UBUNTU-CVE-2026-126188

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Source
https://ubuntu.com/security/CVE-2026-126188
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-126188
Upstream
Published
2026-11-12T00:00:00Z
Modified
2026-11-12T23:46:37Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

Active Storage makes it simple to upload and reference files in cloud services and attach those files to Active Record objects. Prior to 8.0.5.2 and from 8.1 until 8.1.4.1, Active Storage's ActiveStorage::Previewer::VideoPreviewer, ActiveStorage::Analyzer::VideoAnalyzer, and ActiveStorage::Analyzer::AudioAnalyzer pass uploaded blob contents to FFmpeg without restricting the demuxer. A direct upload can retain a client-declared video/* or audio/* content type for an HLS playlist. FFmpeg content probing selects the hls demuxer, which opens attacker-named file:// segments when the blob is previewed or analyzed. Applications that accept untrusted uploads and generate video previews or analyze video or audio attachments can disclose a local media file readable by the application process when the attacker knows its path. This issue is fixed in versions 8.0.5.2 and 8.1.4.1.

References

Affected packages

Ubuntu:24.04:LTS
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails?arch=source&distro=noble

Affected ranges

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

Affected versions

2:6.*
2:6.1.7.3+dfsg-2build1
2:6.1.7.3+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-actioncable",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-actionmailbox",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-actiontext",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-activestorage",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:6.1.7.3+dfsg-3"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:6.1.7.3+dfsg-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json"
Ubuntu:26.04:LTS
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails?arch=source&distro=resolute

Affected ranges

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

Affected versions

2:7.*
2:7.2.2.1+dfsg-7
2:7.2.2.2+dfsg-2
2:7.2.3+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-actioncable",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-actionmailbox",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-actiontext",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-activestorage",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:7.2.3+dfsg-2"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:7.2.3+dfsg-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json"
Ubuntu:26.10
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails?arch=source&distro=stonking

Affected ranges

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

Affected versions

2:7.*
2:7.2.3+dfsg-2
2:7.2.3.2+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-actioncable",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-actionmailbox",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-actiontext",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-activestorage",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:7.2.3.2+dfsg-2"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:7.2.3.2+dfsg-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json"
Ubuntu:Pro:16.04:LTS
rails

Package

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

Affected ranges

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

Affected versions

2:4.*
2:4.1.10-1
2:4.2.5-1
2:4.2.5.1-1
2:4.2.5.2-2
2:4.2.6-1
2:4.2.6-1ubuntu0.1~esm1
2:4.2.6-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:4.2.6-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json"
Ubuntu:Pro:18.04:LTS
rails

Package

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

Affected ranges

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

Affected versions

2:4.*
2:4.2.9-2
2:4.2.9-4
2:4.2.10-0ubuntu4
2:4.2.10-0ubuntu4+esm1
2:4.2.10-0ubuntu4+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:4.2.10-0ubuntu4+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json"
Ubuntu:Pro:20.04:LTS
rails

Package

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

Affected ranges

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

Affected versions

2:5.*
2:5.2.2.1+dfsg-1ubuntu1
2:5.2.3+dfsg-3
2:5.2.3+dfsg-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-actioncable",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-activestorage",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json"
Ubuntu:Pro:22.04:LTS
rails

Package

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

Affected ranges

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

Affected versions

2:6.*
2:6.0.3.7+dfsg-2
2:6.1.4.1+dfsg-8ubuntu2
2:6.1.4.1+dfsg-8ubuntu2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-actioncable",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-actionmailbox",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-actiontext",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-activestorage",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-126188.json"