How severe is CVE-2020-2307?

CVE-2020-2307 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-2020-2307 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-2307?

CVE-2020-2307 affects Jenkins Kubernetes. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-2307?

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

When was CVE-2020-2307 published?

CVE-2020-2307 was published on 2020-11-04 and last updated on 2026-06-17.

CVE-2020-2307

CVE-2020-2307 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% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jenkins Kubernetes
Published: 2020-11-04
Last modified: 2026-06-17

Description

Jenkins Kubernetes Plugin 1.27.3 and earlier allows low-privilege users to access possibly sensitive Jenkins controller environment variables.

Frequently asked questions

What is CVE-2020-2307?: Jenkins Kubernetes Plugin 1.27.3 and earlier allows low-privilege users to access possibly sensitive Jenkins controller environment variables.
How severe is CVE-2020-2307?: CVE-2020-2307 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-2020-2307 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2307?: CVE-2020-2307 affects Jenkins Kubernetes. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2307?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-2307 published?: CVE-2020-2307 was published on 2020-11-04 and last updated on 2026-06-17.

References

https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-1646

Affected products (1)

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

More vulnerabilities in Jenkins Kubernetes

CVE-2018-1999040 — High (CVSS 8.8): An exposure of sensitive information vulnerability exists in Jenkins Kubernetes Plugin 1.10.1 and earlier in…
CVE-2023-30513 — High (CVSS 7.5): Jenkins Kubernetes Plugin 3909.v1f2c633e8590 and earlier does not properly mask (i.e., replace with asterisks)…
CVE-2018-1000187 — Medium (CVSS 6.5): A exposure of sensitive information vulnerability exists in Jenkins Kubernetes Plugin 1.7.0 and older in…
CVE-2021-21661 — Medium (CVSS 4.3): Jenkins Kubernetes CLI Plugin 1.10.0 and earlier does not perform permission checks in several HTTP endpoints, allowing…
CVE-2020-2309 — Medium (CVSS 4.3): A missing/An incorrect permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier allows attackers with…
CVE-2020-2308 — Medium (CVSS 4.3): A missing permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier allows attackers with Overall/Read…

All CVEs affecting Jenkins Kubernetes →