How severe is CVE-2020-2189?

CVE-2020-2189 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-2189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-2189?

CVE-2020-2189 affects Jenkins Source Code Management Filter Jervis. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-2189?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-2189 published?

CVE-2020-2189 was published on 2020-05-06 and last updated on 2026-06-17.

CVE-2020-2189

CVE-2020-2189 is a high-severity vulnerability in Jenkins Source Code Management Filter Jervis with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Jenkins Source Code Management Filter Jervis
Published: 2020-05-06
Last modified: 2026-06-17

Description

Jenkins SCM Filter Jervis Plugin 0.2.1 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.

Frequently asked questions

What is CVE-2020-2189?: Jenkins SCM Filter Jervis Plugin 0.2.1 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.
How severe is CVE-2020-2189?: CVE-2020-2189 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-2189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2189?: CVE-2020-2189 affects Jenkins Source Code Management Filter Jervis. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-2189 published?: CVE-2020-2189 was published on 2020-05-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:source_code_management_filter_jervis:*:*:*:*:*:jenkins:*:*

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