UBUNTU-CVE-2026-41238

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Source

https://ubuntu.com/security/CVE-2026-41238

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41238.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-41238

Upstream

CVE-2026-41238

Published

2026-04-23T16:16:00Z

Modified

2026-05-20T16:12:58.927875326Z

Severity

6.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions 3.0.1 through 3.3.3 are vulnerable to a prototype pollution-based XSS bypass. When an application uses DOMPurify.sanitize() with the default configuration (no CUSTOM_ELEMENT_HANDLING option), a prior prototype pollution gadget can inject permissive tagNameCheck and attributeNameCheck regex values into Object.prototype, causing DOMPurify to allow arbitrary custom elements with arbitrary attributes — including event handlers — through sanitization. Version 3.4.0 fixes the issue.

References

Affected packages

Ubuntu:22.04:LTS / node-dompurify

Package

Name: node-dompurify
Purl: pkg:deb/ubuntu/node-dompurify?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.3.0+dfsg-2

2.3.3+dfsg-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "node-dompurify",
            "binary_version": "2.3.3+dfsg-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41238.json"

Ubuntu:24.04:LTS / node-dompurify

Package

Name: node-dompurify
Purl: pkg:deb/ubuntu/node-dompurify?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.4.1+dfsg+~2.4.0-1

3.*

3.0.9+dfsg+~3.0.5-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "node-dompurify",
            "binary_version": "3.0.9+dfsg+~3.0.5-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41238.json"

Ubuntu:25.10 / node-dompurify

Package

Name: node-dompurify
Purl: pkg:deb/ubuntu/node-dompurify?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.7+dfsg+~3.0.5-1

3.1.7+dfsg+~3.0.5-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "node-dompurify",
            "binary_version": "3.1.7+dfsg+~3.0.5-2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41238.json"

Ubuntu:26.04:LTS / node-dompurify

Package

Name: node-dompurify
Purl: pkg:deb/ubuntu/node-dompurify?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.7+dfsg+~3.0.5-2

3.3.3+dfsg-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "node-dompurify",
            "binary_version": "3.3.3+dfsg-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41238.json"