[jira] [Work logged] (WW-5621) Harden XML parsers against Entity Expansion (Billion Laughs) attacks

[ASF GitHub Bot (Jira)]

     [ 
https://issues.apache.org/jira/browse/WW-5621?focusedWorklogId=1012027&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-1012027
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ASF GitHub Bot logged work on WW-5621:
--------------------------------------

                Author: ASF GitHub Bot
            Created on: 29/Mar/26 06:25
            Start Date: 29/Mar/26 06:25
    Worklog Time Spent: 10m 
      Work Description: sonarqubecloud[bot] commented on PR #1643:
URL: https://github.com/apache/struts/pull/1643#issuecomment-4149546974

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 1012027)
    Time Spent: 1h  (was: 50m)

> Harden XML parsers against Entity Expansion (Billion Laughs) attacks
> --------------------------------------------------------------------
>
>                 Key: WW-5621
>                 URL: https://issues.apache.org/jira/browse/WW-5621
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Plugin - XSLT
>            Reporter: Lukasz Lenart
>            Assignee: Lukasz Lenart
>            Priority: Minor
>             Fix For: 6.9.0, 7.2.0
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Defense-in-depth hardening of XML parsers. Modern JDKs (7u45+) already 
> enforce a 64K entity expansion limit, so this is not an exploitable 
> vulnerability — all XML sources come from the classpath, not user input.
> Changes:
>   - Remove unused {{parseStringAsXML}} feature from {{StringAdapter}} to 
> eliminate theoretical attack surface
>   - Deprecate {{getParseStringAsXML()}} / {{setParseStringAsXML()}} for 
> future removal
>   - Enable {{FEATURE_SECURE_PROCESSING}} in Tiles 
> {{DigesterDefinitionsReader}}
>   - Add unit test verifying JDK entity expansion limit rejects Billion Laughs 
> payloads



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