How severe is CVE-2018-1000149?

CVE-2018-1000149 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2018-1000149 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000149?

CVE-2018-1000149 affects Jenkins Ansible. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000149?

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

When was CVE-2018-1000149 published?

CVE-2018-1000149 was published on 2018-04-05 and last updated on 2026-06-17.

CVE-2018-1000149

CVE-2018-1000149 is a medium-severity vulnerability in Jenkins Ansible with a CVSS 3.x base score of 5.6. 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 5.6)
CVSS v2: 6.8
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jenkins Ansible
Published: 2018-04-05
Last modified: 2026-06-17

Description

A man in the middle vulnerability exists in Jenkins Ansible Plugin 0.8 and older in AbstractAnsibleInvocation.java, AnsibleAdHocCommandBuilder.java, AnsibleAdHocCommandInvocationTest.java, AnsibleContext.java, AnsibleJobDslExtension.java, AnsiblePlaybookBuilder.java, AnsiblePlaybookStep.java that disables host key verification by default.

Frequently asked questions

What is CVE-2018-1000149?: A man in the middle vulnerability exists in Jenkins Ansible Plugin 0.8 and older in AbstractAnsibleInvocation.java, AnsibleAdHocCommandBuilder.java, AnsibleAdHocCommandInvocationTest.java, AnsibleContext.java, AnsibleJobDslExtension.java, AnsiblePlaybookBuilder.java, AnsiblePlaybookStep.java that disables host key verification by default.
How severe is CVE-2018-1000149?: CVE-2018-1000149 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2018-1000149 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000149?: CVE-2018-1000149 affects Jenkins Ansible. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000149?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1000149 published?: CVE-2018-1000149 was published on 2018-04-05 and last updated on 2026-06-17.

References

https://jenkins.io/security/advisory/2018-03-26/#SECURITY-630

Affected products (1)

cpe:2.3:a:jenkins:ansible:*:*:*:*:*:jenkins:*:*

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