Caveat verdict
nexustrader
NexusTrader algorithmic crypto trading skill that communicates through a local MCP server at 127.0.0.1:18765; API keys stay in local .secrets.toml file, auto-start is disabled by default, and orders require explicit user confirmation.
⚠ Flagged for review — coarse, uncorroborated signal, not a confirmed exploit. Review the config yourself before installing.
Automated static analysis — not a human review. Caveat flags capabilities, not confirmed intent, and can produce false positives. Disagree with this verdict? Use Dispute below.
Findings (6)
Pipe-to-shell pattern (curl | sh) — supply chain attack vector
README.md · code · curl -LsSf https://astral.sh/uv/install.sh | sh
Pipe to sh — executes piped content as shell commands
README.md · code · | sh
Possible hardcoded credential
README.md · code · API_KEY = "你的测试网 API Key
HTTP request to bare IP address — common in malicious payloads
SKILL.md · frontmatter · http://127.0.0.1
subprocess execution — runs system commands from Python
bridge.py · prose · downgraded · subprocess.run(
Python os.environ.get — reads environment variable
bridge.py · prose · downgraded · os.environ.get(
Why the tier is capped
Execution sink present in raw bytes (Hard Floor: class A/D/E). Final tier capped at Caution — cannot be lifted by any downgrade, example-payload opt-in, or allowlist.
Permissions & capabilities
Requires 2 system binaries.
Is this flag fair?
Thanks — recorded.