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TI-2026-32389 Aliases CVE-2026-44449

Lumiverse: SMB `exists()` basename injection via smbclient `!cmd` escape

Priority HIGH 74CWE-88Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-88.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00451 39th percentileScored 2026-11-07
Fix Fixed Lumiverse (prolix-oc): 0.9.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
prolix-ocLumiversebefore 0.9.70.9.7Patch availableCNA
  • Lumiverse Vendorprolix-oc Affected before 0.9.7 Fixed in 0.9.7 Patch available CNA

Remediation

  • Fix · CNA Lumiverse (prolix-oc) Fixed in 0.9.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44449
  2. 2026-10-25 EPSS moved to the below the 50th percentile

References

Other 1

  • TI-2026-32384 Lumiverse: Spindle extension install runs untrusted lifecycle scripts before security scan CVSS 3.1CRITICAL 9.1
  • TI-2026-32391 Lumiverse: TSX component sandbox escape via DOM ref and string-split identifier bypass CVSS 3.1CRITICAL 9.3
  • TI-2026-32383 Lumiverse: Sign-up nonce race condition allows unauthorized account registration CVSS 3.1MEDIUM 4.8
  • TI-2026-32390 Lumiverse: RCE via MCP stdio argument injection CVSS 3.1CRITICAL 9.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences