CVE-2020-2121
RCE vulnerability in Google Kubernetes Engine Plugin
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-2121- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-2121- Updated
- 2026-11-02
EUVDEUVD-2022-5561 No score
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.
- Record
EUVD-2022-5561- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wf76-qgqq-gcfj
RCE vulnerability in Google Kubernetes Engine Plugin
Google Kubernetes Engine Plugin 0.8.0 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types. This results in a remote code execution vulnerability exploitable by users able to provide YAML input files to Google Kubernetes Engine Plugin’s build step.
Google Kubernetes Engine Plugin 0.8.1 configures its YAML parser to only instantiate safe types.
- Record
GHSA-wf76-qgqq-gcfj- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2020-2121- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-wf76-qgqq-gcfj
RCE vulnerability in Google Kubernetes Engine Plugin
Google Kubernetes Engine Plugin 0.8.0 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types. This results in a remote code execution vulnerability exploitable by users able to provide YAML input files to Google Kubernetes Engine Plugin’s build step.
Google Kubernetes Engine Plugin 0.8.1 configures its YAML parser to only instantiate safe types.
- Record
GHSA-wf76-qgqq-gcfj- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:google-kubernetes-engineMaven |
before 0.8.1 | 0.8.1 |
org.jenkins-ci.plugins:google-kubernetes-engineMaven |
before 0.8.1, plus listed versions 0.2.00.4.00.5.00.6.00.6.1 Show 5 moreShow less0.6.20.6.30.7.00.7.10.8.0 |
0.8.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-2121 is a high vulnerability (CVSS 8.8) in Jenkins Google Kubernetes Engine, published February 12, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.74%, the 86th percentile. Fixed in org.jenkins-ci.plugins:google-kubernetes-engine 0.8.1.