vestige/SECURITY.md
Sam Valladares a92fb2b6ed release: v1.1.3 — security hardening, edition 2024, dependency updates
Security:
- Fix RUSTSEC-2026-0007 (bytes integer overflow)
- Restrict SQLite database file permissions to 0600 on Unix
- Add 100KB size limit to intention descriptions (DoS prevention)
- Redact JSON-RPC payloads from debug logs (data leakage prevention)
- Update SECURITY.md with encryption docs and supported versions

Modernization:
- Upgrade Rust edition 2021 → 2024, MSRV 1.75 → 1.85
- Upgrade actions/checkout@v4 → v5, codecov/codecov-action@v3 → v5
- Update all dependencies to latest compatible versions
- Fix edition 2024 match ergonomics in compression.rs

Clippy fixes:
- Rename from_str → parse_name to avoid shadowing FromStr trait
- Replace .max().min() with .clamp()
- Replace sort_by with sort_by_key

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-12 03:19:07 -06:00

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# Security Policy
## Supported Versions
| Version | Supported |
| ------- | ------------------ |
| 1.1.x | :white_check_mark: |
| 1.0.x | :x: |
## Reporting a Vulnerability
If you discover a security vulnerability in Vestige, please report it responsibly:
1. **DO NOT** open a public GitHub issue
2. Email the maintainer directly (see GitHub profile)
3. Include:
- Description of the vulnerability
- Steps to reproduce
- Potential impact
- Suggested fix (if any)
You can expect a response within 48 hours.
## Security Model
### Trust Boundaries
Vestige is a **local MCP server** designed to run on your machine with your user permissions:
- **Trusted**: The MCP client (Claude Code/Desktop) that connects via stdio
- **Untrusted**: Content passed through MCP tool arguments (validated before use)
### What Vestige Does NOT Do
- ❌ Make network requests (except first-run model download from Hugging Face)
- ❌ Execute shell commands
- ❌ Access files outside its data directory
- ❌ Send telemetry or analytics
- ❌ Phone home to any server
### Data Storage
All data is stored locally in SQLite:
| Platform | Location |
|----------|----------|
| macOS | `~/Library/Application Support/com.vestige.core/vestige.db` |
| Linux | `~/.local/share/vestige/core/vestige.db` |
| Windows | `%APPDATA%\vestige\core\vestige.db` |
**Default**: Data is stored in plaintext with owner-only file permissions (0600).
### Encryption at Rest
For database-level encryption, build with SQLCipher:
```bash
cargo build --no-default-features --features encryption,embeddings,vector-search
```
Set `VESTIGE_ENCRYPTION_KEY` environment variable. SQLCipher encrypts all database files including the WAL journal. Alternatively, use OS-level encryption (FileVault, BitLocker, LUKS).
### Input Validation
All MCP tool inputs are validated:
- Content size limit: 1MB max
- Query length limit: 1000 characters
- FTS5 queries are sanitized to prevent injection
- All SQL uses parameterized queries (`params![]` macro)
### Dependencies
We use well-maintained dependencies and run `cargo audit` regularly. Current status:
- **Vulnerabilities**: 0
- **Warnings**: 2 (unmaintained transitive dependencies with no known CVEs)
## Security Checklist
- [x] No hardcoded secrets
- [x] Parameterized SQL queries
- [x] Input validation on all tools
- [x] No command injection vectors
- [x] No unsafe Rust code
- [x] Dependencies audited