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TI-2020-01998 Aliases CVE-2020-2121GHSA-wf76-qgqq-gcfj

Deserialization of untrusted data in Jenkins Google Kubernetes Engine Plugin

Priority MEDIUM 43CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

Jenkins Google Kubernetes Engine Plugin 0.8.0 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.

Why it matters now

EPSS 0.02745 86th percentileScored 2026-11-07
Fix Fixed org.jenkins-ci.plugins:google-kubernetes-engine (Maven): 0.8.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins Google Kubernetes Engine Pluginup to 0.8.0—No fix listedCNA
—org.jenkins-ci.plugins:google-kubernetes-engine (Maven)before 0.8.10.8.1Patch availableGHSA-wf76-qgqq-gcfj
  • Jenkins Google Kubernetes Engine Plugin VendorJenkins Affected up to 0.8.0 Fixed in — No fix listed CNA
  • org.jenkins-ci.plugins:google-kubernetes-engine (Maven) Vendor— Affected before 0.8.1 Fixed in 0.8.1 Patch available GHSA-wf76-qgqq-gcfj

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:google_kubernetes_engine:*:*:*:*:*:jenkins:*:*up to 0.8.0VulnerableJenkins
  • cpe:2.3:a:jenkins:google_kubernetes_engine:*:*:*:*:*:jenkins:*:* Versions up to 0.8.0 Vulnerable ·Jenkins

Remediation

  • Fix · GHSA-wf76-qgqq-gcfj org.jenkins-ci.plugins:google-kubernetes-engine (Maven) Fixed in 0.8.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-2121
  2. 2026-10-03 Alias added: GHSA-wf76-qgqq-gcfj

References

Advisory 3

Other 1

  • TI-2019-07754 Missing authorization in Jenkins Google Kubernetes Engine Plugin CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences