CVE-2026-44449
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
Lumiverse before version 0.9.7 contains a command injection vulnerability in the SMB path handling function. When the primary toSmbPath method fails, the code uses an unvalidated basename in the smbclient script, allowing arbitrary command execution via injection of ';' separator or '!cmd' local escape.
Risk Assessment
An attacker can remotely execute arbitrary commands on the Lumiverse server, leading to full compromise of the application and potentially the entire system.
Recommendation
Immediately upgrade Lumiverse to version 0.9.7 or later, which includes a fix for this vulnerability.
Other vulnerabilities in Lumiverse
See all- CVE-2026-44451Critical
Lumiverse prior to 0.9.7 has a vulnerability in the component override system that transpiles TSX via Sucrase and executes it with new Function, shadowing dangerous globals. Static protection and shadowing are bypassed by reconstructing identifiers from string fragments and DOM sandbox escape. A malicious theme pack (.lumitheme) can execute code in an authenticated user's session.
- CVE-2026-44450Critical
Vulnerability in Lumiverse (AI chat app) before version 0.9.7 allows a logged-in user to execute arbitrary code on the server via the MCP server creation endpoint. The attacker can use -e or -c flags in args, leading to remote code execution. The server listens on all interfaces and host-header rebinding protection is easily bypassed.
- CVE-2026-44444Critical
Vulnerability in Lumiverse – the Spindle extension build pipeline runs `bun install` without `--ignore-scripts`, allowing a malicious extension to execute host-level code before security scanning. Fixed in version 0.9.7.
- CVE-2026-44443Medium
In Lumiverse before version 0.9.7, the consumeNonce() function does not validate any value from the incoming HTTP request or bind the nonce to the admin's session. If the admin's sign-up fails before the before hook fires (e.g., due to a duplicate email), the nonce remains set and can be used by an attacker within a 10-second window to register an unauthorized account.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS