CVE-2020-2211 — kubernetes-ci
HIGHCVE-2020-2211 is a high-severity (CVSS 8.8) Deserialization of Untrusted Data vulnerability in com.elasticbox.jenkins-ci.plugins:kubernetes-ci. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
RCE vulnerability in ElasticBox Jenkins Kubernetes CI/CD Plugin
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
com.elasticbox.jenkins-ci.plugins:kubernetes-ciReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
ElasticBox Jenkins Kubernetes CI/CD Plugin 1.3 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types. This results in a remote code execution (RCE) vulnerability exploitable by users able to provide YAML input files to ElasticBox Jenkins Kubernetes CI/CD Plugin’s build step.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | com.elasticbox.jenkins-ci.plugins:kubernetes-ci | all versions | No fix |
Affected Products
kubernetes cijenkinsDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.elasticbox.jenkins-ci.plugins:kubernetes-ci, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of com.elasticbox.jenkins-ci.plugins:kubernetes-ci for CVE-2020-2211. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.
Frequently Asked Questions
Is CVE-2020-2211 in your dependencies?
Find it across Maven, including transitive dependencies.