CVE-2018-1999036
Jenkins SSH Agent Plugin exposes SSH private key password to users with permission to read the build log
An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log.
- Record
CVE-2018-1999036- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
CVE List No score
An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log.
- Record
CVE-2018-1999036- Updated
- 2026-11-02
EUVDEUVD-2022-5656 No score
An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log.
- Record
EUVD-2022-5656- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wwgx-94v6-fc2p
Jenkins SSH Agent Plugin exposes SSH private key password to users with permission to read the build log
An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log. As of version 1.16, the plugin no longer logs the ssh-add invocation that would reveal the passphrase.
- Record
GHSA-wwgx-94v6-fc2p- CVSS 3.0
- 3.1 Low
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
OSV
An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log.
- Record
CVE-2018-1999036- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-wwgx-94v6-fc2p
Jenkins SSH Agent Plugin exposes SSH private key password to users with permission to read the build log
An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log. As of version 1.16, the plugin no longer logs the ssh-add invocation that would reveal the passphrase.
- Record
GHSA-wwgx-94v6-fc2p- CVSS 3.0
- 3.1 Low
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-532
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.jenkins-ci.plugins:ssh-agentMaven |
through 1.15 | 1.16 |
org.jenkins-ci.plugins:ssh-agentMaven |
before 1.16, plus listed versions 0.11.01.11.101.11 Show 14 moreShow less1.121.131.141.151.21.31.41.4.11.4.21.51.61.71.81.9 |
1.16 |
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-2018-1999036 is a medium vulnerability (CVSS 6.5) in Jenkins Ssh Agent, published August 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.37%, the 72nd percentile. Fixed in org.jenkins-ci.plugins:ssh-agent 1.16.