CVE-2026-61899: Apache Tapestry: Possible classpath file download through URL manipulation

Thiago Henrique De Paula Figueiredo <[email protected]>
Newsgroups gmane.comp.jakarta.tapestry.devel
Message-ID <[email protected]> 
Severity: critical 

Affected versions:

- Apache Tapestry (org.apache.tapestry:tapestry-core) 5.5.0 before 5.9.1

Description:

Vulnerability in tapestry-core in Apache Tapestry 5.5.0+ on all platforms allows attackers to download clsspath assets via specially crafted URLs.
Users are recommended to upgrade to version 5.9.1, which fixes this issue.

Credit:

Ilyass El Hadi (finder)

References:

https://tapestry.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-61899
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