CVE-2026-921248.8High
Jenkins Project Jenkins Script Security Plugin vulnerability
Jenkins Project · Jenkins Script Security Plugin
Not in CISA KEVVendor fix available
0.6%probability of exploitation in the next 30 days
50th percentile
050100
Higher than 50% of scored CVEs
8.8HighCVSS
LowMediumHighCrit.
DescriptionNVD
Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier checks the operations Groovy will perform with the elements it reads from a collection that a sandboxed script casts to another type but performs the cast on the collection itself, allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 17 Sep.
- Jenkins Fixes 20 Plugin Flaws Allowing Sandbox Escapes and RCESecurityOnline · first in our coverage · mentions it in passing
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