🛡️ CVE-2026-44450
🔴 CVSS 9.9 — Critical ✅ No Known Exploit CWE-88 NVD
9.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Lumiverse is a full-featured AI chat application. Prior to 0.9.7, the MCP server creation endpoint validates the command field against an allowlist of binary names but forwards the args array to the child process without any validation. Every binary on the allowlist accepts an inline-code execution flag (-e for node/bun, -c for python3/deno), giving any logged-in user arbitrary OS-level code execution on the Lumiverse server. The route requires only requireAuth (not requireOwner). The server binds on all interfaces (::) and the host-header rebinding check is bypassed trivially by any HTTP client that sends Host: localhost: directly, making this exploitable from any machine with network access to the server port. This vulnerability is fixed in 0.9.7.

Details

Severity CRITICAL
CVSS Score 9.9
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE CWE-88
Public Exploit ✅ No
Source NVD
Published 2026-05-26
Updated 2026-06-02
Modified 2026-05-27
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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