CVE-2026-78189: WebDyne versions from 3.007 before 3.022 for Perl execute .psp files outside the document root via path traversal in…

WebDyne versions from 3.007 before 3.022 for Perl execute .psp files outside the document root via path traversal in the PSGI API route fallback. When a request matches no file, the PSGI handler retries it as an API route through apifilename. That keeps .. segments in the request path and only...