Security Audit

nvidia/skillspector:tests/fixtures/sdi/sdi2_inappropriate

github.com/nvidia/skillspector

AI SkillCommit 2eb844780ab1

CRITICAL

Scanned 3 days ago

Critical

Immediate action required

High

Priority fixes suggested

Medium

Best practices review

Low

Acknowledged / Tracked

Trust Assessment

nvidia/skillspector:tests/fixtures/sdi/sdi2_inappropriate received a trust score of 10/100, placing it in the Untrusted category. This skill has significant security findings that require attention before use in production.

SkillShield's automated analysis identified 5 findings: 3 critical, 2 high, 0 medium, and 0 low severity. Key findings include Arbitrary command execution, Dangerous call: subprocess.run(), Command Injection via shell execution of unvalidated file path.

The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. The Manifest Analysis layer scored lowest at 40/100, indicating areas for improvement.

Last analyzed on June 4, 2026 (commit 2eb84478). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.

Layer Breakdown

Manifest Analysis

40%

Static Code Analysis

70%

Dependency Graph

100%

LLM Behavioral Safety

70%

Behavioral Risk Signals

Filesystem Write

3 findings

Shell Execution

5 findings

Dynamic Code

1 finding

Excessive Permissions

1 finding

Security Findings5

Severity	Finding	Layer	Location
CRITICAL	Arbitrary command execution Python shell execution (os.system, subprocess) Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands.	Manifest	tests/fixtures/sdi/sdi2_inappropriate/formatter.py:8
CRITICAL	Arbitrary command execution Python shell execution (os.system, subprocess) Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands.	Manifest	tests/fixtures/sdi/sdi2_inappropriate/formatter.py:9
CRITICAL	Command Injection via shell execution of unvalidated file path The `format_file` function in `formatter.py` executes a shell command using `subprocess.run` with `bash -c` and directly interpolates the `path` parameter. If an attacker can control or influence the file path passed to this function (e.g., by naming a file with shell metacharacters), they can execute arbitrary shell commands with the privileges of the running process. Avoid using `bash -c` to run `chmod`. Instead, use Python's built-in `os.chmod` function (e.g., `os.chmod(path, 0o644)`), or pass the arguments as a list to `subprocess.run` without invoking a shell (e.g., `subprocess.run(["chmod", "644", path], check=True)`).	LLM	formatter.py:8
HIGH	Dangerous call: subprocess.run() Call to 'subprocess.run()' detected in function 'format_file'. This can execute arbitrary code. Avoid using dangerous functions like exec/eval/os.system. Use safer alternatives.	Static	tests/fixtures/sdi/sdi2_inappropriate/formatter.py:8
HIGH	Dangerous call: subprocess.run() Call to 'subprocess.run()' detected in function 'format_file'. This can execute arbitrary code. Avoid using dangerous functions like exec/eval/os.system. Use safer alternatives.	Static	tests/fixtures/sdi/sdi2_inappropriate/formatter.py:9

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