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Advisory record · GHSA-c3jm-9vj7-5v66

Jenkins Script Security Plugin sandbox bypass vulnerability

CVSS 8.8 HighEPSS 0.0051 · 44th percentile

Published by the GitHub Advisory Database at 24 Jun 2026, 15:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.jenkins-ci.plugins:script-securityMaven<1402.1405.vc96e749642501402.1405.vc96e74964250
Identifiers
GHSA-c3jm-9vj7-5v66 · CVE-2026-57280
Weakness (CWE)
CWE-693
Tags
Published
24 Jun 2026
Updated
25 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Jenkins Script Security Plugin versions 1402.v94c9ce464861 and earlier are vulnerable. An attacker who can provide sandboxed scripts can invoke constructors of arbitrary types, because the implicit type cast in typed for loops is not checked by the sandbox, which can lead to arbitrary code execution on the Jenkins controller. Upgrade to version 1402.1405.vc96e74964250, which updates the bundled groovy-sandbox library so these casts are checked.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0051, the 44th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:16 UTC First seen by agentprime
  2. 31 Oct 2026, 14:16 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.