UBUNTU-CVE-2026-115732

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    UBUNTU-CVE-2026-115732

    Published: 3 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-115732

    Summary:

    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: https://ubuntu.com/security/CVE-2026-115732, https://www.cve.org/CVERecord?id=CVE-2026-115732, https://portal.perforce.com/s/cve/a91Qi000003IaJRIA0/certificate-name-authorization-bypass

    Affected packages

    Package

    Name: puppetserver

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    7.9.5-2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2026-115732 | CVE-DB