Controller code execution via unchecked implicit casts
Published Jun 24, 2026 · Updated Jun 24, 2026
Sandbox bypass in Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier allows remote authenticated users to execute controller code. Typed for-each loop elements undergo implicit bytecode-generated casts outside the transformed Groovy AST, so the sandbox fails to intercept arbitrary constructor invocations. Access to submit a sandboxed Groovy script is required, and successful exploitation executes arbitrary code in the Jenkins controller JVM.
Summary
What happened
Sandbox bypass in Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier allows remote authenticated users to execute controller code. Typed for-each loop elements undergo implicit bytecode-generated casts outside the transformed Groovy AST, so the sandbox fails to intercept arbitrary constructor invocations. Access to submit a sandboxed Groovy script is required, and successful exploitation executes arbitrary code in the Jenkins controller JVM.
The record
- CVE
- CVE-2026-57280
- Published
- Jun 24, 2026
- Updated
- Jun 24, 2026
- Vendor
- Jenkins Project
- Product
- Script Security Plugin
- Classifications
- CWE-693, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 24, 2026CVE publishedPublication date reported by the CVE source.
- Jun 24, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=1402.v94c9ce464861
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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