UBUNTU-CVE-2026-120421

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Source
https://ubuntu.com/security/CVE-2026-120421
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-120421
Upstream
  • CVE-2026-120421
Published
2026-11-05T00:00:00Z
Modified
2026-11-06T01:00:35Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In Eclipse Mojarra versions 2.2.0 through 4.0.28, 4.1.0 through 4.1.19, and 5.0.0-M1 through 5.0.0-M11, when URL client window mode is enabled (jakarta.faces.CLIENT_WINDOW_MODE=url), the client window id from the jfwid or jakarta.faces.ClientWindow request parameter is appended to generated URLs without URL-encoding. h:button renders such a URL into a JavaScript string literal, which allows reflected cross-site scripting. With com.sun.faces.enableCspNonce=true, the injected script runs on page load inside the nonce script element, bypassing the Content Security Policy.

References

Affected packages

Ubuntu:16.04:LTS
mojarra

Package

Name
mojarra
Purl
pkg:deb/ubuntu/mojarra?arch=source&distro=xenial

Affected ranges

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

Affected versions

2.*
2.2.8-1
2.2.8-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjsf-api-java",
            "binary_version": "2.2.8-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json"
Ubuntu:18.04:LTS
mojarra

Package

Name
mojarra
Purl
pkg:deb/ubuntu/mojarra?arch=source&distro=bionic

Affected ranges

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

Affected versions

2.*
2.2.8-3
2.2.8-4
2.2.8-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjsf-api-java",
            "binary_version": "2.2.8-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json"
Ubuntu:20.04:LTS
mojarra

Package

Name
mojarra
Purl
pkg:deb/ubuntu/mojarra?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.2.8-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjsf-api-java",
            "binary_version": "2.2.8-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json"
Ubuntu:22.04:LTS
mojarra

Package

Name
mojarra
Purl
pkg:deb/ubuntu/mojarra?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.2.8-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjsf-api-java",
            "binary_version": "2.2.8-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json"
Ubuntu:24.04:LTS
mojarra

Package

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

Affected ranges

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

Affected versions

2.*
2.2.8-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjsf-api-java",
            "binary_version": "2.2.8-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json"
Ubuntu:26.04:LTS
mojarra

Package

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

Affected ranges

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

Affected versions

2.*
2.2.8-6
2.2.8-6build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjsf-api-java",
            "binary_version": "2.2.8-6build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json"
Ubuntu:26.10
mojarra

Package

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

Affected ranges

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

Affected versions

2.*
2.2.8-6build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libjsf-api-java",
            "binary_version": "2.2.8-6build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120421.json"