CVE-2026-57280 Jenkins Script Security Plugin sandbox bypass vulnerability

High 8.8 Published Updated

Attackers can bypass the Groovy sandbox in Jenkins Script Security Plugin to invoke arbitrary constructors and execute code.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-57280?

CVE-2026-57280 is a high-severity vulnerability in Jenkins Script Security Plugin, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not intercept the implicit type casts applied to the elements of typed for-each loops in sandboxed Groovy scripts, allowing attackers able to provide such scripts to invoke arbitrary constructors and bypass the sandbox protection.

Weakness: CWE-693

Which versions are affected by CVE-2026-57280?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:script-security. It affects 1 product.

PackageAffectedFixed in
org.jenkins-ci.plugins:script-security MavenAll versions1402.1405.vc96e74964250
org.jenkins-ci.plugins:script-security MavenAll versions1402.1405.vc96e74964250

Products include Jenkins Script Security.

How do I fix CVE-2026-57280?

Upgrade org.jenkins-ci.plugins:script-security to 1402.1405.vc96e74964250 or later.

Is CVE-2026-57280 being exploited?

There is no known exploitation of CVE-2026-57280 in the wild and no public exploit code.

Sources

Also known as GHSA-c3jm-9vj7-5v66, MINI-3f2f-qcqv-xg8r, MINI-937j-h7cg-733j, MINI-hj9x-xhvm-36f3, MINI-m66h-cv6m-fhrw, MINI-p5c5-x68v-cvxf and 2 more.

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