UBUNTU-CVE-2026-112085

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Source
https://ubuntu.com/security/CVE-2026-112085
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112085.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-112085
Upstream
Published
2026-10-26T00:00:00Z
Modified
2026-10-27T04:17:26Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

webpack-dev-server is a development server that provides live reloading for webpack projects. In versions before 5.2.7 and in version 6.0.0, when a proxy entry is configured to forward WebSockets, the server forwards non-HMR WebSocket upgrade requests to the proxy target without validating the Host or Origin headers, so the allowedHosts protection does not apply to those proxied upgrades. A malicious web page visited by a developer can open a cross-origin WebSocket through the dev server and read from and write to the proxied backend, even when the server is bound to loopback. The issue is fixed in webpack-dev-server 5.2.7 and 6.1.0, where proxied WebSocket upgrades pass the same Host and Origin validation as the HMR WebSocket, and users should upgrade to one of those versions or later. As a workaround, omit WebSocket forwarding from proxy entries that do not need it and scope the proxy to specific paths.

References

Affected packages

Ubuntu:18.04:LTS
node-webpack

Package

Name
node-webpack
Purl
pkg:deb/ubuntu/node-webpack?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.5.6-1build3
3.5.6-1build4
3.5.6-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "webpack",
            "binary_version":  "3.5.6-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112085.json"
Ubuntu:20.04:LTS
node-webpack

Package

Name
node-webpack
Purl
pkg:deb/ubuntu/node-webpack?arch=source&distro=focal

Affected ranges

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

Affected versions

4.*
4.7.0-3
4.30.0-7
4.30.0-9

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "webpack",
            "binary_version":  "4.30.0-9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112085.json"
Ubuntu:22.04:LTS
node-webpack

Package

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

Affected ranges

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

Affected versions

4.*
4.43.0-6build4
4.43.0-7

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "webpack",
            "binary_version":  "4.43.0-7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112085.json"
Ubuntu:24.04:LTS
node-webpack

Package

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

Affected ranges

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

Affected versions

5.*
5.76.1+dfsg1+~cs17.16.16-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "webpack",
            "binary_version":  "5.76.1+dfsg1+~cs17.16.16-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112085.json"
Ubuntu:26.04:LTS
node-webpack

Package

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

Affected ranges

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

Affected versions

5.*
5.97.1+dfsg1+~cs11.18.27-3
5.97.1+dfsg1+~cs11.18.27-4
5.105.4+dfsg1+~cs15.13.23-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "webpack",
            "binary_version":  "5.105.4+dfsg1+~cs15.13.23-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112085.json"
Ubuntu:26.10
node-webpack

Package

Name
node-webpack
Purl
pkg:deb/ubuntu/node-webpack?arch=source&distro=stonking

Affected ranges

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

Affected versions

5.*
5.105.4+dfsg1+~cs15.13.23-2
5.108.0+dfsg1+~cs14.7.20-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "webpack",
            "binary_version":  "5.108.0+dfsg1+~cs14.7.20-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112085.json"