We release patches for security vulnerabilities in the following versions:

Please do not report security vulnerabilities through public GitHub issues.

Instead, please report them via one of the following methods:

1. Go to the Security Advisories page
2. Click "Report a vulnerability"
3. Fill out the form with details about the vulnerability
4. Submit the report

Send an email to: security@example.com (replace with actual security contact)

Include the following information:

• Type of vulnerability
• Full paths of source file(s) related to the vulnerability
• Location of the affected source code (tag/branch/commit or direct URL)
• Step-by-step instructions to reproduce the issue
• Proof-of-concept or exploit code (if possible)
• Impact of the vulnerability, including how an attacker might exploit it

• Acknowledgment: Within 48 hours
• Initial Assessment: Within 5 business days
• Status Updates: Every 7 days until resolved
• Resolution Timeline: Depends on severity
  • Critical: 7 days
  • High: 14 days
  • Medium: 30 days
  • Low: 90 days

S3-Web is designed to defend against:

1. Server-Side Request Forgery (SSRF)

   • Strict URL validation
   • Allowlist-based S3 endpoint validation
   • No user-controlled URLs in backend requests

2. Cross-Site Scripting (XSS)

   • Content Security Policy (CSP) headers
   • Input sanitization
   • Safe preview rendering
   • No dangerouslySetInnerHTML without sanitization

3. Cross-Site Request Forgery (CSRF)

   • CSRF tokens for state-changing operations
   • SameSite cookie attributes
   • Origin validation

4. Authentication Bypass

   • OAuth2/OIDC with PKCE
   • Short-lived tokens
   • Secure session management
   • Multi-factor authentication support

5. Privilege Escalation

   • Least-privilege RBAC
   • Immutable audit logs
   • Break-glass mode with justification
   • Regular permission reviews

6. Data Exfiltration

   • Time-bound signed URLs
   • Rate limiting on downloads
   • Audit logging of all access
   • Network egress controls

7. Injection Attacks

   • Parameterized SQL queries
   • Input validation
   • Output encoding
   • Command injection prevention

8. Denial of Service

   • Rate limiting
   • Circuit breakers
   • Resource quotas
   • Request size limits

• OAuth2/OIDC Support: Industry-standard authentication
• SAML Support: Enterprise SSO integration
• Role-Based Access Control: Granular permissions
• Multi-Factor Authentication: Optional second factor
• Session Management: Secure, short-lived sessions
• Token Rotation: Automatic credential rotation

• Encryption at Rest: All sensitive data encrypted
• Encryption in Transit: TLS 1.3 for all connections
• Secrets Management: HashiCorp Vault integration
• Key Rotation: Automated encryption key rotation
• Data Sanitization: Secure deletion of sensitive data

• Immutable Audit Logs: All actions logged permanently
• Break-Glass Tracking: Elevated access fully audited
• Security Events: Real-time security event monitoring
• Anomaly Detection: Unusual activity alerts
• Compliance Reporting: Audit trail exports

• Strict CORS: Controlled cross-origin access
• Content Security Policy: XSS prevention
• Rate Limiting: DDoS protection
• IP Allowlisting: Optional network restrictions
• mTLS Support: Mutual TLS for service-to-service

• Minimal Base Images: Distroless containers
• Non-Root Execution: Containers run as non-root
• Read-Only Filesystems: Immutable container filesystems
• Security Scanning: Automated vulnerability scanning
• Image Signing: Signed container images

• Pod Security Standards: Restricted pod security
• Network Policies: Microsegmentation
• RBAC: Kubernetes role-based access
• Secrets Management: Kubernetes secrets or Vault
• Security Contexts: Secure pod configurations

1. Keep Software Updated

   • Apply security patches promptly
   • Monitor security advisories
   • Use automated update tools

2. Secure Configuration

   • Change default credentials
   • Enable all security features
   • Use strong encryption
   • Configure network policies

3. Access Control

   • Implement least privilege
   • Regular access reviews
   • Use multi-factor authentication
   • Rotate credentials regularly

4. Monitoring

   • Enable audit logging
   • Monitor security events
   • Set up alerting
   • Regular log reviews

5. Backup & Recovery

   • Regular encrypted backups
   • Test recovery procedures
   • Secure backup storage
   • Document DR procedures

1. Secure Coding

   • Follow OWASP guidelines
   • Input validation
   • Output encoding
   • Error handling

2. Dependency Management

   • Keep dependencies updated
   • Scan for vulnerabilities
   • Use trusted sources
   • Pin versions

3. Testing

   • Security unit tests
   • Integration tests
   • Penetration testing
   • Fuzzing

4. Code Review

   • Security-focused reviews
   • Automated scanning
   • Peer review
   • Security checklist

5. Secrets Management

   • Never commit secrets
   • Use environment variables
   • Rotate credentials
   • Use Vault or similar

• TLS certificates configured
• Secrets stored in Vault
• Network policies applied
• RBAC configured
• Audit logging enabled
• Monitoring configured
• Backups configured
• Rate limiting enabled
• Security scanning enabled
• Incident response plan documented

• Security tests passing
• Dependency scan clean
• Container scan clean
• Code review completed
• Penetration test performed
• Security documentation updated
• Changelog includes security fixes
• CVE assigned (if applicable)

• Credential Storage: S3 credentials stored encrypted in Vault
• Credential Scope: Credentials scoped to minimum required permissions
• Credential Rotation: Automatic rotation via Vault dynamic secrets
• Network Access: S3 endpoints validated against allowlist

• File Size Limits: Strict limits prevent resource exhaustion
• Content Validation: MIME type validation and content sniffing
• Sandboxing: Previews rendered in isolated context
• Timeout Protection: Preview generation has strict timeouts

• Checksum Verification: SHA-256 validation for all transfers
• Retry Limits: Bounded retries prevent infinite loops
• Resource Limits: Transfer concurrency and bandwidth limits
• Cleanup: Failed transfers cleaned up automatically

• Time-Bound: Automatic expiration of elevated access
• Justification Required: Reason must be provided
• Audit Trail: All actions logged immutably
• Notification: Security team notified of activation

S3-Web is designed to support compliance with:

• SOC 2: Security controls and audit trails
• GDPR: Data protection and privacy controls
• HIPAA: Healthcare data security (with proper configuration)
• PCI DSS: Payment card data security (with proper configuration)

Note: Compliance certification is the responsibility of the operator. S3-Web provides the necessary controls, but proper configuration and operational procedures are required.

Security updates are released as:

1. Patch Releases: For security fixes in supported versions
2. Security Advisories: Published on GitHub Security Advisories
3. CVE Assignments: For vulnerabilities meeting CVE criteria
4. Changelog Entries: All security fixes documented

Subscribe to:

• GitHub Security Advisories
• Release notifications
• Security mailing list (if available)

• OWASP Top 10
• CWE Top 25
• Kubernetes Security Best Practices
• Go Security Best Practices
• React Security Best Practices

For security-related questions or concerns:

• Security Issues: Use private security advisory (preferred)
• Security Questions: security@example.com
• General Questions: Use GitHub Discussions

We appreciate the security research community and will acknowledge researchers who responsibly disclose vulnerabilities:

• Researcher name and affiliation (with permission)
• CVE assignment
• Credit in release notes
• Hall of Fame (if applicable)

Built by IBM Bob - Security-conscious AI-assisted development

Last Updated: 2026-01-17