Paper/Archive/CVE-2026-44449

CVE-2026-44449

prolix-oc Lumiverse — Lumiverse: SMB `exists()` basename injection via smbclient `!cmd` escape

Description · from the CVE record

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

ProductAffectedFixed inSource
Lumiverse< 0.9.7–CNA

Scores by source

GitHub_M (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/prolix-oc/Lumiverse/security/advisories/GHSA-4v38-9hqq-7j53