CVE-2020-1731
Java vulnerability analysis and mitigation

Overview

A remote code execution (RCE) vulnerability was discovered in the Google Kubernetes Engine Plugin version 0.8.0 and earlier, identified as CVE-2020-2121 (SECURITY-1731). The vulnerability was disclosed on February 12, 2020, affecting the YAML parser configuration in the plugin which could allow arbitrary type instantiation (Jenkins Advisory).

Technical details

The vulnerability stems from the Google Kubernetes Engine Plugin's YAML parser not being properly configured to prevent the instantiation of arbitrary types. The severity was rated as High according to the CVSS scoring system (Jenkins Advisory).

Impact

This vulnerability could allow attackers with the ability to provide YAML input files to Google Kubernetes Engine Plugin's build step to execute arbitrary code on the affected system (Jenkins Advisory).

Mitigation and workarounds

The vulnerability was fixed in Google Kubernetes Engine Plugin version 0.8.1, which configures its YAML parser to only instantiate safe types. Users are advised to upgrade to this version or later to address the vulnerability (Jenkins Advisory).

Additional resources


SourceThis report was generated using AI

Related Java vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-29847HIGH7.5
  • JavaJava
  • org.apache.linkis:linkis
NoYesJan 19, 2026
CVE-2026-1050MEDIUM6.9
  • JavaJava
  • net.risesoft:risenet-y9boot-support-platform-service
NoNoJan 17, 2026
CVE-2025-15104MEDIUM6.9
  • JavaScriptJavaScript
  • vnu-jar
NoNoJan 16, 2026
CVE-2025-59355MEDIUM6.5
  • JavaJava
  • org.apache.linkis:linkis-metadata
NoYesJan 19, 2026
CVE-2026-0858MEDIUM5.1
  • JavaJava
  • net.sourceforge.plantuml:plantuml
NoYesJan 16, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management