Arbitrary Code Execution Vulnerability in Jenkins Script Security Plugin
CVE-2026-92128

7.5HIGH

Key Information:

Vendor

Jenkins
Status
Jenkins Script Security Plugin
Vendor
CVE Published:
16 September 2026

What is CVE-2026-92128?

The Jenkins Script Security Plugin, versions 1415.v9a_f9b_3a_c253d and prior, is susceptible to an arbitrary code execution vulnerability. This issue arises from the plugin downloading a JAR file specified by URL twice. The first download is approved, while the subsequent download allows the attacker to manipulate the classpath entries, leading to the execution of arbitrary code within the Jenkins controller JVM context. This flaw poses a significant risk, enabling attackers to exploit the plugin's functionality to execute malicious code.

Affected Version(s)

Jenkins Script Security Plugin 0 <= 1415.v9a_f9b_3a_c253d

References

https://www.jenkins.io/security/advisory/2026-09-16/#SECU...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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