EUVD-2026-80748
GHSA-hmrv-c342-g42p
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable script submission (AV:N/AC:L), attacker must hold sandboxed-script authoring rights (PR:L), and controller-JVM RCE yields full C/I/A; scope kept U as the escape stays within Jenkins' security authority.
Primary rating from Vendor (jenkins).
CVSS VectorVendor: jenkins
Lifecycle Timeline
5DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Arbitrary code execution in Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier allows an authenticated attacker with permission to define and run sandboxed Groovy scripts or Pipelines to bypass the sandbox and run code in the Jenkins controller JVM. The flaw is a protection mechanism failure (CWE-693) in how the plugin casts collections, and it carries CVSS 8.8 with PR:L; only users who can author sandboxed scripts or Pipelines can trigger it. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an account with Jenkins permission to define and run sandboxed scripts - specifically Groovy scripts or Pipeline definitions that are executed through the Script Security sandbox (typically Job/Configure or equivalent Pipeline-authoring rights). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority issue for any organization running multi-tenant Jenkins, though not an emergency drop-everything scenario. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch available per vendor advisory: consult the Jenkins advisory at https://www.jenkins.io/security/advisory/2026-09-16/#SECURITY-3923 for the fixed version of the Script Security Plugin and upgrade to that release; the provided data does not include an exact fix version, so do not rely on an invented version number. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit Jenkins user permissions to identify all accounts with the ability to define and run sandboxed Groovy scripts or Pipelines, and immediately revoke these rights from any non-essential personnel; also confirm that Jenkins Script Security Plugin version 1415.v9a_f9b_3a_c253d or earlier is in use. …
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Same weakness CWE-693 – Protection Mechanism Failure
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External POC / Exploit Code
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