Debug Messages Revealing Unnecessary Information in Apache JSPWiki up to 2.12.3. Users are recommended to upgrade to version 2.12.4, which fixes this issue.
https://lists.apache.org/thread/2dm414zzjo3pvhjz6mvqy3b5yhvnkcg5
https://jspwiki-wiki.apache.org/Wiki.jsp?page=CVE-2026-28811