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Scripting Module Release Notes for Mule 4

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Scripting module executes custom logic written in a scripting language.

Guide: Scripting Module User Guide

2.1.4

September 25, 2026

Compatibility

Software Version

Mule

4.2.0 and later

OpenJDK

8, 11, and 17

Fixed Issues

Issue Resolution ID

NullPointerException errors no longer occur when a flow that contains a <script:execute> operation is invoked concurrently for the first time.

W-24088176

The io.projectreactor:reactor-core library is upgraded to version 3.8.7 to address the CVE-2026-47857 security vulnerability.

W-24277557

2.1.3

September 4, 2026

What’s New

  • This release includes general security fixes.

Compatibility

Software Version

Mule

4.2.0 and later

OpenJDK

8, 11, and 17

2.1.2

August 17, 2026

What’s New

  • This connector version requires Mule runtime 4.6.22 or later if you’re using Mule 4.6.x, or Mule runtime 4.9.9 or later if you’re using Mule 4.9.x. If you prefer not to upgrade your Mule runtime, use the connector version released immediately after this one.

Compatibility

Software Version

Mule

4.2.0 and later

OpenJDK

8, 11, and 17

Fixed Issues

Issue Resolution ID

These libraries are upgraded to address reported security vulnerabilities:

  • The jruby library is upgraded to version 9.4.15.0.

  • The commons-lang3 library is upgraded to version 3.20.0.

W-23657171

2.1.1

June 5, 2024

What’s New

  • The GraalVM JS libraries are removed from the scripting module to reduce its size. You must now provide those libraries yourself.

Compatibility

Software Version

Mule

4.2.0 and later

OpenJDK

8, 11, and 17

2.1.0

December 14, 2023

What’s New

  • This connector is now compatible with Java 17.

  • GraalVM JS libraries added 20MB+ size.

Compatibility

Software Version

Mule

4.2.0 and later

OpenJDK

8, 11, and 17

2.0.4

October 31, 2023

Compatibility

Software Version

Mule

4.2.0 and later

Fixed Issues

Issue Resolution ID

Memory leak no longer occurs when using Groovy after multiple re-deployments.

W-12691090

2.0.3

September 28, 2022

Compatibility

Software Version

Mule

4.2.0 and later

Fixed Issues

Issue Resolution ID

Scripting engine ECMAScript not found error no longer occurs.

W-11619477

2.0.2

August 3, 2022

Compatibility

Software Version

Mule

4.2.0 and later

Fixed Issues

Issue Resolution ID

Fixed multiple vulnerabilities and removed unnecessary dependencies. Scripting module now uses external libraries instead.

W-11472915

2.0.1 (Deprecated)

March 17, 2022

This version is deprecated. All of the features and fixed issues for this version are in version 2.0.2.

2.0.0

June 29, 2020

Minimum Mule Version

Mule 4.2.0

New Features and Enhancements

Scripting Module does not bundles anymore scripting engines which drastically reduces the size of Mule applications. Streams are now correctly injected into the script avoiding the injection of internal MuleSoft classes.

Fixed Issues

  • The usage of Scripting Module increase drastically the size of Mule applications.

1.1.7

April 17, 2020

Minimum Mule Version

Mule 4.1.1

New Features and Enhancements

None.

Fixed Issues

  • Upgraded JRuby dependency to 9.2.11.1.

  • Upgraded Jython dependency to 2.7.2.

  • Upgraded Reactor dependency to 3.2.3.

  • Updated connectors-parent version to 1.1.7 (MULE-18198)

  • Updated MUnit version to the latest release (MULE-17301)

1.1.6

April 11, 2019

Minimum Mule Version

Mule 4.1.1

New Features and Enhancements

None.

Fixed Issues

  • Upgraded JRuby dependency to 9.2.7.0. (MULE-16706)

  • Upgraded Reactor dependency to 3.2.8. (MULE-16706)

  • Upgraded Groovy dependency to 2.4.16. (MULE-16706)

1.1.5

April 8, 2019

Minimum Mule Version

Mule 4.1.1

New Features and Enhancements

None.

Fixed Issues

  • Upgraded JRuby dependency to 9.2.6.0. (MULE-16673)

  • Upgraded Reactor dependency to 3.2.6. (MULE-16189)

1.1.4

January 31, 2019

Minimum Mule Version

Mule 4.1.1

New Features and Enhancements

N/A

Fixed Issues

  • Scripting Module propagates the input payload MimeType as the output payload MimeType. (MULE-15640)

  • Improve Static Metadata. (MULE-14951)

  • Upgrade Groovy to 2.4.15. (MULE-14926)

1.1.3

July 12, 2018

Minimum Mule Version

Mule 4.1.0

New Features and Enhancements

N/A

Fixed Issues

  • Scripting checks registry on each execution. (MULE-15294)

  • Race condition in Scripting module initialization. (MULE-15339)

1.1.2

May 7, 2018

Minimum Mule Version

Mule 4.0.0

New Features and Enhancements

This release includes the following enhancements, changes, and fixes:

  • Improves processing by changing execution type from CPU_LITE to CPU_INTENSIVE.

  • Improves context variables binding by only exposing compatibility related ones when such plugin is present.

Fixed Issues

  • Thread type to be used by scripting component must be CPU_INTENSIVE. (MULE-14720)

  • Limit DW message binding context attribute exposure. (MULE-13297)

1.1.1

March 15, 2018

Minimum Mule Version

Mule 4.0.0

New Features and Enhancements

This release includes the following library upgrade:

  • JRuby to version 9.1.16.0.

Fixed Issues

  • Upgrade jruby-stdlib to 9.1.16.0. (MULE-14639)

1.1.0

Jan 23, 2018

Minimum Mule Version

Mule 4.0.0

New Features and Enhancements

Initial release.

See Also