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HealthLog/SECURITY.md
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Marc-André Bombeck 38309932f3 Initial release v1.0.0
HealthLog — personal health-tracking PWA with weight, blood pressure,
pulse, mood tracking, medication compliance, Withings integration,
doctor report PDF export, and Dracula-themed UI.
2026-03-10 20:14:33 +01:00

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# Security Policy
## Supported Versions
Only the latest release on the `main` branch is actively supported with security updates.
| Version | Supported |
|---------|-----------|
| Latest | Yes |
| Older | No |
## Reporting a Vulnerability
If you discover a security vulnerability, please report it responsibly.
**Do not open a public GitHub issue for security vulnerabilities.**
Instead, send an email to **security@bombeck.io** with:
- A description of the vulnerability
- Steps to reproduce
- Potential impact
- Suggested fix (if any)
## Response Timeline
- **Acknowledgement**: Within 72 hours
- **Initial assessment**: Within 1 week
- **Fix and disclosure**: Coordinated with reporter, typically within 30 days
## Scope
The following are in scope:
- Authentication and session management
- Data encryption and secret handling
- API authorization and access control
- Cross-site scripting (XSS), CSRF, and injection vulnerabilities
- Information disclosure
Out of scope:
- Denial of service attacks
- Social engineering
- Vulnerabilities in third-party dependencies (report upstream)
- Issues requiring physical access to the server
## Security Architecture
HealthLog is designed with security as a core principle:
- **Passkey-first authentication** (WebAuthn/FIDO2) with password fallback
- **AES-256-GCM encryption** for all stored secrets (OAuth tokens, API keys, VAPID keys)
- **Argon2id** password hashing with zxcvbn strength validation
- **HMAC-SHA256** hashed API tokens
- **Server-side sessions** in PostgreSQL (HttpOnly, SameSite=Strict, 30-day sliding expiry)
- **Rate limiting** on authentication and external-facing endpoints
- **Security headers**: CSP with nonces, HSTS, X-Frame-Options DENY, Permissions-Policy
- **Proxy-level route protection** via `proxy.ts` (session cookie validation on all non-public paths)
For more details, see the [security documentation](https://docs.healthlog.dev/security/overview/).