CVE-2018-1000149
Jenkins Ansible Plugin man in the middle vulnerability
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-1000149- CVSS 3.0
- 5.6 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-1000149- Updated
- 2026-11-02
EUVDEUVD-2022-2077 No score
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.
- Record
EUVD-2022-2077- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-322x-jv5h-cvjh
Jenkins Ansible Plugin man in the middle vulnerability
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. Ansible Plugin 1.0 now enables host key verification by default, adding options allowing users to opt out.
- Record
GHSA-322x-jv5h-cvjh- CVSS 3.0
- 5.6 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
OSV
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.
- Record
CVE-2018-1000149- CVSS 3.0
- 5.6 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
OSVGHSA-322x-jv5h-cvjh
Jenkins Ansible Plugin man in the middle vulnerability
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. Ansible Plugin 1.0 now enables host key verification by default, adding options allowing users to opt out.
- Record
GHSA-322x-jv5h-cvjh- CVSS 3.0
- 5.6 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:ansibleMaven |
through 0.8 | 1.0 |
org.jenkins-ci.plugins:ansibleMaven |
before 1.0, plus listed versions 0.10.20.30.3.10.4 Show 4 moreShow less0.50.6.10.6.20.8 |
1.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-1000149 is a medium vulnerability (CVSS 5.6) in Jenkins Ansible, published April 5, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. Fixed in org.jenkins-ci.plugins:ansible 1.0.