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Posted to issues@camel.apache.org by "Claus Ibsen (Jira)" <ji...@apache.org> on 2026/06/19 19:45:00 UTC

[jira] [Resolved] (CAMEL-23799) Simple language: sort init-block substitution keys by length to prevent prefix collision

     [ https://issues.apache.org/jira/browse/CAMEL-23799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen resolved CAMEL-23799.
---------------------------------
    Resolution: Fixed

> Simple language: sort init-block substitution keys by length to prevent prefix collision
> ----------------------------------------------------------------------------------------
>
>                 Key: CAMEL-23799
>                 URL: https://issues.apache.org/jira/browse/CAMEL-23799
>             Project: Camel
>          Issue Type: Bug
>            Reporter: Adriano Machado
>            Assignee: Adriano Machado
>            Priority: Minor
>             Fix For: 4.21.0
>
>
> When SimpleExpressionParser and SimplePredicateParser substitute init\-block keys in the expression string, shorter keys that are prefixes of longer ones could match first and corrupt the substitution. Sorting keys by descending length before substituting ensures longer \(more specific\) keys are always replaced first, preventing this prefix collision.
> Discovered during the work on CAMEL\-22894 \(simple language parser hardening\).



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