Summary
Jenkins Plugin Installation Manager Tool did not verify plugin downloads
Jenkins Plugin Installation Manager Tool is part of the Jenkins project Docker images. As jenkins-plugin-cli it is used to download and install plugins even before Jenkins is running.
Jenkins Plugin Installation Manager Tool 2.1.3 and earlier does not verify plugin downloads. This may allow third parties such as mirror operators to provide crafted plugin downloads.
Jenkins Plugin Installation Manager Tool 2.2.0 confirms that actual checksums of downloaded plugin match the expected checksums.
Docker images of Jenkins 2.269 and 2.263.1 contain Plugin Installation Manager Tool 2.2.0. Users of older Docker images can change the version they use by extending the Jenkins image and update the tool themselves with:
ARG PLUGIN_CLI_URL=https://github.com/jenkinsci/plugin-installation-manager-tool/releases/download/2.2.0/jenkins-plugin-manager-2.2.0.jar
RUN curl -fsSL ${PLUGIN_CLI_URL} -o /usr/lib/jenkins-plugin-manager.jar
Jenkinsfile Runner 1.0-beta-22 Docker images also include Plugin Installation Manager Tool 2.2.0.
Impact
CVE-2020-2320 has a CVSS score of 9.8 (Critical). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (2.2.0); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2020-2320? CVE-2020-2320 is a critical-severity security vulnerability in io.jenkins.plugin-management:plugin-management-parent-pom (maven), affecting versions < 2.2.0. It is fixed in 2.2.0.
- How severe is CVE-2020-2320? CVE-2020-2320 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of io.jenkins.plugin-management:plugin-management-parent-pom are affected by CVE-2020-2320? io.jenkins.plugin-management:plugin-management-parent-pom (maven) versions < 2.2.0 is affected.
- Is there a fix for CVE-2020-2320? Yes. CVE-2020-2320 is fixed in 2.2.0. Upgrade to this version or later.
- Is CVE-2020-2320 exploitable, and should I be worried? Whether CVE-2020-2320 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2020-2320 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2020-2320? Upgrade
io.jenkins.plugin-management:plugin-management-parent-pomto 2.2.0 or later.