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Model Context Protocol server for Open Policy Agent (OPA). Author, validate, debug, and explain Rego policies through any MCP-compatible client.

@orygn/opa-mcp093 files scannedMay 21, 2026

High risk — review the findings below

We found multiple concerning patterns in this package. Some of these might be legitimate (for example, a build tool might need to run commands), but you should review each finding below and decide if the explanations make sense for what this package claims to do.

What We Found(11 issues)

Each card explains what was found and what it means in plain English. Click "Technical details" for the full breakdown.

HIGHHIGH-001

Caution. This package can turn any text into running code. A bad actor could trick it into running harmful commands on your computer. Legitimate tools almost never need this.

Technical details

eval() executes arbitrary strings as code. In an MCP context, this could allow prompt injection to escalate into code execution.

eval(
src/lib/opa-cli.ts:328
HIGHHIGH-001

Caution. This package can turn any text into running code. A bad actor could trick it into running harmful commands on your computer. Legitimate tools almost never need this.

Technical details

eval() executes arbitrary strings as code. In an MCP context, this could allow prompt injection to escalate into code execution.

eval(
src/lib/opa-cli.ts:334
HIGHHIGH-001

Caution. This package can turn any text into running code. A bad actor could trick it into running harmful commands on your computer. Legitimate tools almost never need this.

Technical details

eval() executes arbitrary strings as code. In an MCP context, this could allow prompt injection to escalate into code execution.

eval(
src/tools/evaluation/_shared.ts:126
HIGHHIGH-001

Caution. This package can turn any text into running code. A bad actor could trick it into running harmful commands on your computer. Legitimate tools almost never need this.

Technical details

eval() executes arbitrary strings as code. In an MCP context, this could allow prompt injection to escalate into code execution.

eval(
src/tools/helpers/policy-diff.ts:249
HIGHHIGH-001

Caution. This package can turn any text into running code. A bad actor could trick it into running harmful commands on your computer. Legitimate tools almost never need this.

Technical details

eval() executes arbitrary strings as code. In an MCP context, this could allow prompt injection to escalate into code execution.

eval(
src/tools/helpers/policy-diff.ts:249
HIGHHIGH-003

Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.

Technical details

Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.

exec(
src/lib/opa-cli.ts:203
HIGHHIGH-003

Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.

Technical details

Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.

exec(
src/lib/regal-cli.ts:99
HIGHHIGH-003

Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.

Technical details

Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.

exec(
src/lib/regal-cli.ts:99
HIGHHIGH-003

Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.

Technical details

Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.

spawn(
src/lib/subprocess.ts:41
HIGHHIGH-003

Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.

Technical details

Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.

exec(
src/tools/helpers/fix.ts:102
HIGHHIGH-003

Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.

Technical details

Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.

exec(
src/tools/helpers/suggest-fix.ts:55

Finding Summary

0

Critical

11

High

0

Medium

0

Low

0

Info