CVE-2026-44449Public exploitNetwork attack vector

Authenticated command execution via unchecked SMB basename

Published May 26, 2026 · Updated May 26, 2026

Command injection in Prolix OCs Lumiverse before 0.9.7 allows remote authenticated users with Owner or Admin access to execute server commands. SMBFileSystem.exists() validates only the directory after toSmbPath() rejects a full path, then inserts the unchecked basename into an smbclient command script. An Owner or Admin session and a reachable SMB migration endpoint are required; smbclient's local-shell escape runs the command as the server process user.

CVSS severity9.1
Critical
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in Prolix OCs Lumiverse before 0.9.7 allows remote authenticated users with Owner or Admin access to execute server commands. SMBFileSystem.exists() validates only the directory after toSmbPath() rejects a full path, then inserts the unchecked basename into an smbclient command script. An Owner or Admin session and a reachable SMB migration endpoint are required; smbclient's local-shell escape runs the command as the server process user.

The record

CVE
CVE-2026-44449
Published
May 26, 2026
Updated
May 26, 2026
Vendor
Prolix OCs
Product
Lumiverse
Classifications
CWE-88, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 26, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.9.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Prolix OCs · Lumiverseversion=< 0.9.7

Published CVSS scores

9.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo