CVE-2026-92128: Vulnerability in Jenkins Project Jenkins Script Security Plugin
Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier downloads a JAR file specified by URL twice, confirming the approval of the first download and loading the classpath entries from the second, allowing attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.
AI Analysis
Technical Summary
Jenkins Script Security Plugin versions up to and including 1415.v9a_f9b_3a_c253d contain a vulnerability where the plugin downloads a JAR file specified by URL twice. The first download confirms approval, and the second loads classpath entries from the JAR. An attacker able to define classpath entries can exploit this behavior to execute arbitrary code in the Jenkins controller JVM, potentially compromising the Jenkins server.
Potential Impact
Successful exploitation allows an attacker with the ability to define classpath entries to execute arbitrary code on the Jenkins controller JVM. This could lead to full compromise of the Jenkins server environment, affecting build processes and potentially exposing sensitive data or infrastructure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict the ability to define classpath entries to trusted users only and monitor Jenkins controller access closely.
CVE-2026-92128: Vulnerability in Jenkins Project Jenkins Script Security Plugin
Description
Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier downloads a JAR file specified by URL twice, confirming the approval of the first download and loading the classpath entries from the second, allowing attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.
CVSS v3.1
Score 7.5high
Affected software
Jenkins Project
Jenkins Script Security Plugin
pkg:github/jenkinsci/script-security-pluginRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Jenkins Script Security Plugin versions up to and including 1415.v9a_f9b_3a_c253d contain a vulnerability where the plugin downloads a JAR file specified by URL twice. The first download confirms approval, and the second loads classpath entries from the JAR. An attacker able to define classpath entries can exploit this behavior to execute arbitrary code in the Jenkins controller JVM, potentially compromising the Jenkins server.
Potential Impact
Successful exploitation allows an attacker with the ability to define classpath entries to execute arbitrary code on the Jenkins controller JVM. This could lead to full compromise of the Jenkins server environment, affecting build processes and potentially exposing sensitive data or infrastructure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict the ability to define classpath entries to trusted users only and monitor Jenkins controller access closely.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-09-15T16:29:44.794Z
- State
- PUBLISHED
Threat ID: 6aaaa17155bf5e2cf5b35d56
Added to database: 09/16/2026, 14:02:25 UTC
Last enriched: 09/16/2026, 14:17:44 UTC
Last updated: 09/17/2026, 04:01:23 UTC
Views: 41
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