UBUNTU-CVE-2026-25500

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Source
https://ubuntu.com/security/CVE-2026-25500
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-25500
Upstream
Downstream
Related
Published
2026-02-18T20:18:00Z
Modified
2026-02-28T06:11:08.294837Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, Rack::Directory generates an HTML directory index where each file entry is rendered as a clickable link. If a file exists on disk whose basename starts with the javascript: scheme (e.g. javascript:alert(1)), the generated index contains an anchor whose href is exactly javascript:alert(1). Clicking the entry executes JavaScript in the browser (demonstrated with alert(1)). Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue.

References

Affected packages

Ubuntu:24.04:LTS
ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@2.2.7-1ubuntu0.6?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.7-1ubuntu0.6

Affected versions

2.*
2.2.4-3
2.2.7-1
2.2.7-1ubuntu0.1
2.2.7-1ubuntu0.2
2.2.7-1ubuntu0.3
2.2.7-1ubuntu0.4
2.2.7-1ubuntu0.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-rack",
            "binary_version": "2.2.7-1ubuntu0.6"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json"
Ubuntu:25.10
ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@3.1.16-0.1ubuntu0.2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.1.16-0.1ubuntu0.2

Affected versions

2.*
2.2.7-1.1
3.*
3.1.16-0.1
3.1.16-0.1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-rack",
            "binary_version": "3.1.16-0.1ubuntu0.2"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json"
Ubuntu:Pro:14.04:LTS
ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@1.5.2-3+deb8u3ubuntu1~esm10?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

1.*
1.5.2-1
1.5.2-1ubuntu0.1~esm1
1.5.2-3+deb8u3ubuntu1~esm2
1.5.2-3+deb8u3ubuntu1~esm3
1.5.2-3+deb8u3ubuntu1~esm4
1.5.2-3+deb8u3ubuntu1~esm6
1.5.2-3+deb8u3ubuntu1~esm7
1.5.2-3+deb8u3ubuntu1~esm8
1.5.2-3+deb8u3ubuntu1~esm9
1.5.2-3+deb8u3ubuntu1~esm10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librack-ruby",
            "binary_version": "1.5.2-3+deb8u3ubuntu1~esm10"
        },
        {
            "binary_name": "librack-ruby1.8",
            "binary_version": "1.5.2-3+deb8u3ubuntu1~esm10"
        },
        {
            "binary_name": "librack-ruby1.9.1",
            "binary_version": "1.5.2-3+deb8u3ubuntu1~esm10"
        },
        {
            "binary_name": "ruby-rack",
            "binary_version": "1.5.2-3+deb8u3ubuntu1~esm10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json"
Ubuntu:Pro:16.04:LTS
ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@1.6.4-3ubuntu0.2+esm9?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

1.*
1.5.2-4
1.6.4-2
1.6.4-3
1.6.4-3ubuntu0.1
1.6.4-3ubuntu0.2
1.6.4-3ubuntu0.2+esm1
1.6.4-3ubuntu0.2+esm2
1.6.4-3ubuntu0.2+esm4
1.6.4-3ubuntu0.2+esm5
1.6.4-3ubuntu0.2+esm6
1.6.4-3ubuntu0.2+esm7
1.6.4-3ubuntu0.2+esm8
1.6.4-3ubuntu0.2+esm9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-rack",
            "binary_version": "1.6.4-3ubuntu0.2+esm9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json"
Ubuntu:Pro:18.04:LTS
ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@1.6.4-4ubuntu0.2+esm9?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*
1.6.4-4
1.6.4-4ubuntu0.1
1.6.4-4ubuntu0.2
1.6.4-4ubuntu0.2+esm1
1.6.4-4ubuntu0.2+esm2
1.6.4-4ubuntu0.2+esm4
1.6.4-4ubuntu0.2+esm5
1.6.4-4ubuntu0.2+esm6
1.6.4-4ubuntu0.2+esm7
1.6.4-4ubuntu0.2+esm8
1.6.4-4ubuntu0.2+esm9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-rack",
            "binary_version": "1.6.4-4ubuntu0.2+esm9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json"
Ubuntu:Pro:20.04:LTS
ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@2.0.7-2ubuntu0.1+esm9?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.7-2ubuntu0.1+esm9

Affected versions

2.*
2.0.6-3
2.0.7-2
2.0.7-2ubuntu0.1
2.0.7-2ubuntu0.1+esm1
2.0.7-2ubuntu0.1+esm2
2.0.7-2ubuntu0.1+esm3
2.0.7-2ubuntu0.1+esm4
2.0.7-2ubuntu0.1+esm5
2.0.7-2ubuntu0.1+esm6
2.0.7-2ubuntu0.1+esm7
2.0.7-2ubuntu0.1+esm8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-rack",
            "binary_version": "2.0.7-2ubuntu0.1+esm9"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json"
Ubuntu:Pro:22.04:LTS
ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@2.1.4-5ubuntu1.2+esm2?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.4-5ubuntu1.2+esm2

Affected versions

2.*
2.1.4-3
2.1.4-4
2.1.4-5
2.1.4-5ubuntu1
2.1.4-5ubuntu1+esm2
2.1.4-5ubuntu1+esm3
2.1.4-5ubuntu1+esm4
2.1.4-5ubuntu1+esm5
2.1.4-5ubuntu1.1
2.1.4-5ubuntu1.1+esm1
2.1.4-5ubuntu1.1+esm2
2.1.4-5ubuntu1.2
2.1.4-5ubuntu1.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-rack",
            "binary_version": "2.1.4-5ubuntu1.2+esm2"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25500.json"