CVE-2026-18482

Critical · CVSS 9.8

CVSS: 9.8; nvd
EPSS: 1.65%; 75th pct
KEV: No
Class: oss containerizable; CWE-78

Description

Neo.mjs contains a command injection vulnerability within the FileSystemService.mjs component of the ai/mcp/server/file-system MCP server, where the checkSyntax() and runPlaywrightTest() functions unsafely interpolate caller-controlled absolutePath values into shell commands, enabling arbitrary OS command execution when an AI agent is induced to invoke these tools. Commit 88c77fc fixes these vulnerabilities.

References

https://github.com/neomjs/neo/commit/5acc564ea1b278bca5fab1f8f397a6ba9b849d75
https://github.com/neomjs/neo/commit/88c77fc4
https://novice-22.com/posts/neo-mjs/
https://novice-22.com/posts/neo-mjs/

Status: profiled · ingested 2026-09-03T18:00:49.000Z