CVE-2026-18482

CVE-2026-18482

State
Published
Severity
9.8 Critical
Published
Aug 20, 2026
Updated
Aug 27, 2026
Reserved
Jul 31, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

ProductVersions
neo-mjsKlarso GmbH
  • before 88c77fc4Affected

References

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