How severe is CVE-2020-2308?

CVE-2020-2308 has a CVSS score of 4.3/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2020-2308?

CVE-2020-2308 affects the following packages: org.csanchez.jenkins.plugins:kubernetes (Maven), org.csanchez.jenkins.plugins:kubernetes (Maven), org.csanchez.jenkins.plugins:kubernetes (Maven), org.csanchez.jenkins.plugins:kubernetes (Maven). Ecosystems affected: Maven.

How do I fix CVE-2020-2308?

Update org.csanchez.jenkins.plugins:kubernetes to 1.27.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-2308 is resolved across your whole dependency graph.

How do I detect CVE-2020-2308 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.csanchez.jenkins.plugins:kubernetes, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2020-2308 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2020-2308 actively exploited in the wild?

No public exploit code has been indexed for CVE-2020-2308 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2020-2308?

CVE-2020-2308 has an EPSS (Exploit Prediction Scoring System) score of 1.0%, placing it in the 63th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

When was CVE-2020-2308 published, and has it been updated?

CVE-2020-2308 was published on November 4, 2020 and was last updated on October 24, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2020-2308 — kubernetes

MEDIUMFix: jenkinsci/kubernetes-plugin@7aac209

CVE-2020-2308 is a medium-severity (CVSS 4.3) vulnerability in org.csanchez.jenkins.plugins:kubernetes. A fix is available for org.csanchez.jenkins.plugins:kubernetes — see the affected versions and patch details below.

Missing Authorization in Jenkins Kubernetes Plugin

Also known asGHSA-rr6j-37cv-c7x7

Published

Nov 4, 2020

Updated

Oct 24, 2026

Affected

4 pkgs

Patched

4 / 4

Exploits

None indexed

Exploitation data as of Oct 26, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.0%probability of exploitation in next 30 days

Lower Risk-0.14%

Lower risk than most CVEs63th percentile — riskier than 63% of all scored CVEsHighest risk

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

4 pkgs affected

☕org.csanchez.jenkins.plugins:kubernetes☕org.csanchez.jenkins.plugins:kubernetes☕org.csanchez.jenkins.plugins:kubernetes☕org.csanchez.jenkins.plugins:kubernetes

Real-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

Jenkins Kubernetes Plugin prior to 1.27.4, 1.26.5, 1.25.4.1, and 1.21.6 does not perform a permission check in an HTTP endpoint.

This allows attackers with Overall/Read permission to list global pod template names.

Kubernetes Plugin 1.27.4, 1.26.5, 1.25.4.1, and 1.21.6 requires Overall/Administer permission to list global pod template names.

Affected Packages

4 total 4 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.csanchez.jenkins.plugins:kubernetes`	≥ 1.27.1&&< 1.27.4	1.27.4`org.csanchez.jenkins.plugins:kubernetes:1.27.4`
☕Maven	`org.csanchez.jenkins.plugins:kubernetes`	≥ 1.26.0&&< 1.26.5	1.26.5`org.csanchez.jenkins.plugins:kubernetes:1.26.5`
☕Maven	`org.csanchez.jenkins.plugins:kubernetes`	≥ 1.22.0&&< 1.25.4.1	1.25.4.1`org.csanchez.jenkins.plugins:kubernetes:1.25.4.1`
☕Maven	`org.csanchez.jenkins.plugins:kubernetes`	all versions	1.21.6`org.csanchez.jenkins.plugins:kubernetes:1.21.6`

Affected Products

1 product · 1 configurations

Application

kubernetesjenkins

≤ 1.27.3

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.csanchez.jenkins.plugins:kubernetes, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.csanchez.jenkins.plugins:kubernetes to 1.27.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-2308 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

Product	Fixed in	Advisory
Red Hat OpenShift Container Platform 3.11	`jenkins-2-plugins-0:3.11.1612862361-1.el7`	RHSA-2021:0637
Red Hat OpenShift Container Platform 4.5	`jenkins-2-plugins-0:4.5.1610108899-1.el7`	RHSA-2021:0034
Red Hat OpenShift Container Platform 4.6	`jenkins-2-plugins-0:4.6.1608634578-1.el7`	RHSA-2021:0038

Frequently Asked Questions

Jenkins Kubernetes Plugin prior to 1.27.4, 1.26.5, 1.25.4.1, and 1.21.6 does not perform a permission check in an HTTP endpoint. This allows attackers with Overall/Read permission to list global pod template names. Kubernetes Plugin 1.27.4, 1.26.5, 1.25.4.1, and 1.21.6 requires Overall/Administer permission to list global pod template names.

O3 Security · Impact-Aware SCA

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Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

4.3/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

OpenSSF Scorecard

Package health score

kubernetes-plugin

6.7/10

Code-Review9/10

Maintained10/10

Branch-ProtectionN/A

Assessed Oct 26, 2026

Timeline

Disclosed

Nov 4, 2020

Last updated

Oct 24, 2026

Identifiers

CVE-2020-2308

GHSA-rr6j-37cv-c7x7

References

Advisoryjenkins.io · 2020 11 04 Advisorynvd.nist.gov · CVE 2020 2308 Webgithub.com · 7aac20940e637cdd2e38d3afd3748704e4015782

Related vulnerabilities

This CVE is medium severity; 5 of 5 other CVEs affecting kubernetes are rated as high or higher (top: high).

CVE-2023-30513CVE-2020-2307CVE-2020-2309CVE-2018-1000187CVE-2018-1999040

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 24, 2026

CVE-2020-2308 — kubernetes

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Fixing This On Your OS

Frequently Asked Questions

Is CVE-2020-2308 in your dependencies?