← AI agent vulnerabilities

CVE-2026-44450

Lumiverse

9.9
Severity
Critical
Published
May 26, 2026
Last modified
July 24, 2026

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:<port> directly, making this exploitable from any machine with network access to the server port. This vulnerability is fixed in 0.9.7.

CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness

References

CVE-2026-44450 on NVD

Listed in

CriticalMCP servers

Related CVEs

Oct 21
CVE-2026-1141237.5

The officially documented Azure one-click deployment uses infrastructure/azuredeploy.json and infrastructure/main.bicep to default the apiKey parameter to an empty string and pass it to the App Service…

Oct 21
CVE-2026-1140907.1

Trigger.dev cli-v3 from 3.0.0 before 4.5.4 contains a missing authentication vulnerability in the trigger dev --mcp server, which binds all network interfaces and exposes the /sse and /messages endpoints.

Oct 20
CVE-2026-83555.4

IBM ContextForge MCP Gateway 0.1.0 through 1.0.5 is vulnerable to a server-side request Forgery (SSRF) that allows authenticated users with gateway creation privileges to perform arbitrary HTTP POST…

Oct 20
CVE-2026-1137313.3

djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance.

Oct 20
CVE-2026-1133785.3

A security flaw has been discovered in mcollina mcp-ripgrep up to 0.4.0.

Oct 20
CVE-2026-1117678.6

The experimental tasks feature (taskStore) did not check which session created a task.