USN-8364-1: Apache Commons Lang vulnerability

Publication date

2 June 2026

Overview

Apache Commons Lang could be made to crash if it received specially crafted input.


Packages

Details

It was discovered that Apache Commons Lang incorrectly handled recursion
in the ClassUtils.getClass method. An attacker could possibly use this
issue to cause Apache Commons Lang to crash, resulting in a denial of
service.

It was discovered that Apache Commons Lang incorrectly handled recursion
in the ClassUtils.getClass method. An attacker could possibly use this
issue to cause Apache Commons Lang to crash, resulting in a denial of
service.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
24.04 LTS noble libcommons-lang-java –  2.6-10ubuntu0.1
libcommons-lang3-java –  3.14.0-1ubuntu0.1~esm1  
22.04 LTS jammy libcommons-lang-java –  2.6-9ubuntu0.22.04.1
libcommons-lang3-java –  3.11-1ubuntu0.1
20.04 LTS focal libcommons-lang-java –  2.6-9ubuntu0.20.04.1~esm1  
libcommons-lang3-java –  3.8-2ubuntu0.1~esm1  
18.04 LTS bionic libcommons-lang-java –  2.6-8ubuntu0.1~esm1  
libcommons-lang3-java –  3.8-1~18.04.2+esm1  
16.04 LTS xenial libcommons-lang-java –  2.6-6ubuntu2+esm1
libcommons-lang3-java –  3.4-1ubuntu0.1~esm1
14.04 LTS trusty libcommons-lang-java –  2.6-3ubuntu2+esm1  
libcommons-lang3-java –  3.2.1-1ubuntu0.1~esm1  

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