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    CVE-2021-27017

    Utilization of a module presented a security risk by allowing the deserialization of untrusted/user supplied data. This is resolved in the Puppet Agent 7.4.0 release.

    Published:Feb 10, 2021
    Last Modified:Apr 15, 2026
    EPS:Feb 7, 2025
    EPSS Score:0.00116
    CVSS Score:6.6

    Affected Products

    Vendor
    Puppet
    Product
    Puppet Agent

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    Related CVEs

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    CVE-2021-27025 (CVSS 6.5) — A flaw was discovered in Puppet Agent where the agent may silently ignore Augeas settings or may be vulnerable…
    CVE-2020-7942 (CVSS 6.5) — Previously, Puppet operated on a model that a node with a valid certificate was entitled to all information in…
    CVE-2016-5713 (CVSS 9.8) — Versions of Puppet Agent prior to 1.6.0 included a version of the Puppet Execution Protocol (PXP) agent that p…
    CVE-2016-5714 (CVSS 7.2) — Puppet Enterprise 2015.3.3 and 2016.x before 2016.4.0, and Puppet Agent 1.3.6 through 1.7.0 allow remote attac…
    CVE-2016-2786 (CVSS 9.8) — The pxp-agent component in Puppet Enterprise 2015.3.x before 2015.3.3 and Puppet Agent 1.3.x before 1.3.6 does…
    CVE-2016-2785 (CVSS 9.8) — Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 m…
    CVE-2015-1855 (CVSS 5.9) — verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, …

    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