CVE-2017-1000503: Race Condition in Jenkins
Summary
CVE-2017-1000503: Race Condition in Jenkins. Affects org.jenkins-ci.main:jenkins-core across 2 version ranges.
>= 2.81, < 2.89.2
>= 2.90, < 2.95
Fixed in 2.89.2 or 2.95, depending on the release line you run. How to fix ↓
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Background
Jenkins is an open-source automation server that enables developers to build, test, and deploy their software projects. It is widely used for continuous integration and delivery. The vulnerable package in question is org.jenkins-ci.main:jenkins-core, which is a core component of Jenkins responsible for its main functionality.
Vulnerability Detail
A race condition vulnerability exists in Jenkins versions 2.81 through 2.94 (inclusive) and version 2.89.1 during startup. This vulnerability can lead to the incorrect order of execution of commands during initialization. In rare cases, this can result in the failure to initialize the setup wizard on the first startup. As a consequence, multiple security-related settings are not set to their usual strict default. The vulnerability is assigned a CVSS score of 8.1, indicating a high severity level.
How To Fix
Latest published version: 2.587 as of 22 Oct 2026
Upgrading to it may include breaking changes; the versions below are the minimum fixed release for this vulnerability.
If you can't move to the latest
The minimum fixed version depends on the release line you run.
-
>= 2.81, < 2.89.22.89.2 -
>= 2.90, < 2.952.95
Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. The recommended solution is to upgrade to the fixed versions of Jenkins as mentioned above.
Conclusion
In conclusion, the race condition vulnerability in Jenkins versions 2.81 through 2.94 and version 2.89.1 during startup can lead to the incorrect order of command execution and the failure to initialize the setup wizard. Upgrading to the fixed versions of Jenkins is the recommended solution. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Jenkins is an open-source automation server used for continuous integration and delivery. It helps developers build, test, and deploy their software projects.
The vulnerable package is org.jenkins-ci.main:jenkins-core, which is a core component of Jenkins responsible for its main functionality.
A race condition vulnerability occurs when the behavior of a program depends on the relative timing of events, which can lead to unexpected and potentially harmful outcomes.
The vulnerability can result in the failure to initialize the setup wizard on the first startup of Jenkins. This leads to multiple security-related settings not being set to their usual strict default.
The CVSS score of this vulnerability is 8.1, indicating a high severity level.
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