UBUNTU-CVE-2026-115732

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Source
https://ubuntu.com/security/CVE-2026-115732
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115732.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-115732
Upstream
  • CVE-2026-115732
Published
2026-11-03T21:17:00Z
Modified
2026-11-05T11:46:54Z
Severity
  • 9.0 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Incorrect authorization in the certificate-name matching of trapperkeeper-authorization, as used by Puppet Server, in the affected products, allows a client that holds a CA-signed certificate whose name extends or shortens an authorized hostname to be authorized as that host. This enables impersonation of other nodes and, in Puppet Enterprise, access to certificate-authority administration and remote command execution on managed nodes. Exploitation requires a certificate with a colliding name, which the certificate authority issues by approval or autosign.

References

Affected packages

Ubuntu:24.04:LTS / puppetserver

Package

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

Affected ranges

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

Affected versions

7.*
7.9.5-2
8.*
8.4.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "puppet-master",
            "binary_version": "8.4.0-1"
        },
        {
            "binary_name": "puppet-master-passenger",
            "binary_version": "8.4.0-1"
        },
        {
            "binary_name": "puppetserver",
            "binary_version": "8.4.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115732.json"

Ubuntu:26.10 / puppetserver

Package

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

Affected ranges

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

Affected versions

8.*
8.7.0-6ubuntu1
8.7.0-6ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "puppetserver",
            "binary_version": "8.7.0-6ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115732.json"

Ubuntu:26.04:LTS / puppetserver

Package

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

Affected ranges

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

Affected versions

8.*
8.7.0-3
8.7.0-6
8.7.0-6ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "puppetserver",
            "binary_version": "8.7.0-6ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115732.json"