CVE-2026-44449: Prolix-Oc Lumiverse

Critical severity, CVSS 9.1. EPSS: 0.9% chance of exploitation in the next 30 days.

Lumiverse is a full-featured AI chat application. Prior to 0.9.7, when the primary toSmbPath(fullPath) call throws, the method falls back to a dirname/basename split and only validates the directory prefix. The basename is concatenated directly into the smbclient -c script without validation. smbclient interprets ; as a subcommand separator and !cmd as a local-shell escape that runs cmd on the host. A path whose directory component is clean but whose basename contains "; !<cmd>; echo " achieves arbitrary command execution on the Lumiverse server. This vulnerability is fixed in 0.9.7.

Affected products

• Prolix-Oc Lumiverse: before 0.9.7 (fixed in 0.9.7)

Published 2026-05-26. Last modified 2026-07-24.