How severe is CVE-2020-2309?

CVE-2020-2309 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-2309 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-2309?

CVE-2020-2309 affects Jenkins Kubernetes. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-2309?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-2309 published?

CVE-2020-2309 was published on 2020-11-04 and last updated on 2026-06-17.

CVE-2020-2309

CVE-2020-2309 is a medium-severity vulnerability in Jenkins Kubernetes with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jenkins Kubernetes
Published: 2020-11-04
Last modified: 2026-06-17

Description

A missing/An incorrect permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.

Frequently asked questions

What is CVE-2020-2309?: A missing/An incorrect permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier allows attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.
How severe is CVE-2020-2309?: CVE-2020-2309 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-2309 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2309?: CVE-2020-2309 affects Jenkins Kubernetes. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2309?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-2309 published?: CVE-2020-2309 was published on 2020-11-04 and last updated on 2026-06-17.

References

https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2103

Affected products (1)

cpe:2.3:a:jenkins:kubernetes:*:*:*:*:*:jenkins:*:*

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