Jenkins Multijob Plugin Allows Code Execution via Groovy Scripting
CVE-2026-70431

8.8HIGH

Key Information:

Vendor

Jenkins
Status
Jenkins Multijob Plugin
Vendor
CVE Published:
5 August 2026

What is CVE-2026-70431?

The Jenkins Multijob Plugin, up to version 669.v9d96a_d9c71b_0, contains a vulnerability that exposes Groovy scripting features without adequate security integration through the Script Security Plugin. This oversight allows attackers holding Item/Create or Item/Configure permissions to execute arbitrary code within the Jenkins controller JVM, potentially compromising the entire server and its operations. It is crucial for Jenkins users to address this vulnerability to ensure the security of their CI/CD environments.

Affected Version(s)

Jenkins Multijob Plugin 0 <= 669.v9d96a_d9c71b_0

References

https://www.jenkins.io/security/advisory/2026-08-05/#SECU...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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