UBUNTU-CVE-2026-33658

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Source
https://ubuntu.com/security/CVE-2026-33658
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33658.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-33658
Upstream
Published
2026-03-26T22:16:00Z
Modified
2026-04-02T17:31:26Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 Active Storage's proxy controller does not limit the number of byte ranges in an HTTP Range header. A request with thousands of small ranges causes disproportionate CPU usage compared to a normal request for the same file, possibly resulting in a DoS vulnerability. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.

References

Affected packages

Ubuntu:24.04:LTS
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails@2:6.1.7.3+dfsg-3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "2:6.1.7.3+dfsg-3",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33658.json"
Ubuntu:25.10
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails@2:7.2.2.1+dfsg-7?arch=source&distro=questing

Affected ranges

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

Affected versions

2:6.*
2:6.1.7.3+dfsg-7
2:7.*
2:7.2.2.1+dfsg-7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "rails"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-actioncable"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-actionmailbox"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-actionmailer"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-actionpack"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-actiontext"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-actionview"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-activejob"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-activemodel"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-activerecord"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-activestorage"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-activesupport"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-rails"
        },
        {
            "binary_version": "2:7.2.2.1+dfsg-7",
            "binary_name": "ruby-railties"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33658.json"
Ubuntu:Pro:16.04:LTS
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails@2:4.2.6-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "2:4.2.6-1ubuntu0.1~esm2",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33658.json"
Ubuntu:Pro:18.04:LTS
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails@2:4.2.10-0ubuntu4+esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "2:4.2.10-0ubuntu4+esm2",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33658.json"
Ubuntu:Pro:20.04:LTS
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails@2:5.2.3+dfsg-3ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "2:5.2.3+dfsg-3ubuntu0.1~esm1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33658.json"
Ubuntu:Pro:22.04:LTS
rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails@2:6.1.4.1+dfsg-8ubuntu2+esm1?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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_version": "2:6.1.4.1+dfsg-8ubuntu2+esm1",
            "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"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33658.json"