CVE-2026-34783

CVE-2026-34783 is a path traversal in Ferret’s IO::FS::WRITE (and related IO::FS::READ) that lets an attacker cause arbitrary file writes during web scraping by supplying filenames containing ".." sequences. A malicious website can manipulate output paths so the attacker controls destination and ...

GHSA-J6V5-G24H-VG4J Ferret: Path Traversal in IO::FS::WRITE allows arbitrary file write when scraping malicious websites

Summary A path traversal vulnerability in Ferret's IO::FS::WRITE standard library function allows a malicious website to write arbitrary files to the filesystem of the machine running Ferret. When an operator scrapes a website that returns filenames containing ../ sequences, and uses those...