Rowan:面向 AI 应用的开源 SAST 扫描器,覆盖代码、模型文件与 MCP 配置
Original title: Show HN: Rowan, an open-source SAST scanner for AI apps (code, models, MCP)"
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Rowan 是作者开源的一款 SAST 扫描器,读取项目源码和模型文件,报告注入、不安全反序列化、SSRF、泄露密钥、有风险的 agent 工具和不安全模型加载等问题,且不运行被扫描代码。
Find security issues in your code and AI/ML projects, with evidence you can review.
Rowan reads your project's source code and model files and reports likely vulnerabilities: injection, unsafe deserialization, SSRF, leaked secrets, risky agent tools, unsafe model loading and more. It never runs your code.
Alpha. Treat every finding as a lead to check, not a confirmed bug. A clean report does not prove a project is secure.
Quick start
You need Python 3.10+ and pipx, which installs
command-line tools into their own environment (on macOS: brew install pipx,
then pipx ensurepath and open a new terminal).
1. Install Rowan:
pipx install "rowan-sast[js-crossfile]"Already use uv? uv tool install "rowan-sast[js-crossfile]" works too. A plain
pip install fails on Homebrew Python by design; see
getting started for a virtual-environment install.
2. Install the scan engine (Opengrep) and check it:
rowan install-engine export PATH="$HOME/.local/bin:$PATH" rowan self-test
self-test should print [OK] three times.
3. Scan a project:
rowan scan /path/to/your-project
Windows, troubleshooting and more detail: getting started.
Let your coding agent do it
Paste this into Claude Code, Codex, Cursor or any agent that can run terminal commands, with your project open:
Install Rowan and scan this project for security issues.
1. Install it in its own folder (not inside this project) by following
https://github.com/hedgerow-dev/rowan/blob/main/docs/getting-started.md
2. Run `rowan self-test`. If the engine is not [OK], stop and tell me.
3. Run: rowan scan <this project's absolute path> --no-project-config
--no-sca --audit -f json -o <a folder outside this project>/rowan-report.json
4. If summary.degraded is true, tell me the scan is incomplete and why.
5. List the High and Critical findings with file:line links. For each one,
say whether you checked the code or it is still just a lead.
6. Do not change any code in this project.
--no-sca keeps this first scan offline. Drop it to also check your
dependencies for known CVEs (this sends package names and versions to OSV).
Common commands
rowan scan PATH # readable report rowan scan PATH --audit # include low-severity findings rowan scan PATH -f json -o report.json # save a report (also: html, sarif) rowan scan PATH --ci --severity high # CI: exit 1 on high/critical findings rowan scan PATH --write-baseline base.json # record today's findings... rowan scan PATH --ci --baseline base.json # ...then report only new ones
With --ci, exit code 0 means no findings, 1 means findings, and 2
means the scan was incomplete. Reports can contain source code and secrets:
review them before sharing.
What it checks
| Area | Coverage |
|---|---|
| Source code | Injection, unsafe deserialization, path traversal, SSRF, XSS, secrets |
| AI/ML apps | Model loading, agent tools, LLM output handling, prompt files, MCP config |
| Dataflow | Within-file through Opengrep; cross-file for Python and JS/TS, limited for Go |
| Dependencies | Known CVEs, reachability hints, CycloneDX SBOM and OpenVEX output |
| Model files | Pickle, PyTorch, GGUF, SafeTensors, Keras, ONNX, TensorFlow, numpy, joblib (via Hayward) |
Python and JS/TS get the deepest analysis. Java, Kotlin and C# get within-file dataflow. Ruby, PHP and Rust get limited pattern checks. The report lists what it could not analyze.
The rule catalog has 591 rules across 48 YAML files. That is 400 regex rules and 191 taint rules (Opengrep). See the rule catalog.
Privacy
rowan scan never calls an LLM or uploads your code. Its only network calls
are dependency lookups (OSV and FIRST EPSS), which --no-sca turns off.
The experimental rowan hunt command does send code to the LLM you configure:
see the usage guide.
More
- Getting started: install, first scan, MCP setup, troubleshooting
- Capabilities: what Rowan finds, how it compares, measured results
- Usage guide: every option, configuration, baselines, CI and GitHub Action
- Contributing and architecture
- Security policy: report a vulnerability in Rowan privately
License
MIT. Opengrep is a separate LGPL-2.1 engine and is not bundled.
Source: Hacker News · MCP · github.com