CVE-2026-70431 Code injection in Jenkins Multijob Plugin
Attackers with specific Jenkins permissions can execute arbitrary code on the controller via Groovy scripting in the Multijob Plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-70431?
CVE-2026-70431 is a high-severity code injection vulnerability in Jenkins Multijob Plugin, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Multijob Plugin 669.v9d96a_d9c71b_0 and earlier provides Groovy scripting features that do not integrate with Script Security Plugin, allowing attackers with Item/Create or Item/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM.
Weakness: CWE-94
Which versions are affected by CVE-2026-70431?
How do I fix CVE-2026-70431?
No fix has been published for CVE-2026-70431 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-70431 being exploited?
There is no known exploitation of CVE-2026-70431 in the wild and no public exploit code.
Sources
Also known as GHSA-vxm7-6w3j-gm87.