CVE-2026-18482
CVE-2026-18482
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.
INFO
Published Date :
Aug. 20, 2026, 1:16 p.m.
Last Modified :
Aug. 20, 2026, 1:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-18482
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Apply commit 88c77fc to the FileSystemService component.
- Review and sanitize all user-supplied path inputs.
- Avoid interpolating paths directly into shell commands.
- Implement strict input validation for file operations.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18482.
| URL | Resource |
|---|---|
| https://github.com/neomjs/neo/commit/5acc564ea1b278bca5fab1f8f397a6ba9b849d75 | |
| https://github.com/neomjs/neo/commit/88c77fc4 | |
| https://novice-22.com/posts/cve-2026-18482-neo.mjs/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18482 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-18482
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-18482 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18482 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 20, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Klarso GmbH', 'product': 'neo-mjs', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '88c77fc4', 'versionType': 'custom'}]}] Added 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. Added Reference https://github.com/neomjs/neo/commit/5acc564ea1b278bca5fab1f8f397a6ba9b849d75 Added Reference https://github.com/neomjs/neo/commit/88c77fc4 Added Reference https://novice-22.com/posts/cve-2026-18482-neo.mjs/