This document provides specific security hardening recommendations for production Infisical deployments. These recommendations follow Infisical’s security model and focus on defense in depth.

Choose your deployment method below and follow the recommendations for your specific setup. Start with Universal Security Fundamentals that apply to all deployments, then follow your deployment-specific section.

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Universal Security Fundamentals

These security configurations apply to all Infisical deployments regardless of how you deploy.

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Cryptographic Security

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Generate Secure Keys

Generate strong cryptographic keys for your deployment:

# Required - Generate secure encryption key
ENCRYPTION_KEY=$(openssl rand -hex 16)

# Required - Generate secure auth secret
AUTH_SECRET=$(openssl rand -base64 32)

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Configure Token Lifetimes

Minimize exposure window for compromised tokens:

# JWT token configuration (adjust based on security requirements)
JWT_AUTH_LIFETIME=15m        # Authentication tokens
JWT_REFRESH_LIFETIME=24h     # Refresh tokens
JWT_SERVICE_LIFETIME=1h      # Service tokens

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Network Security

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TLS Configuration

Configure HTTPS and secure database connections:

# Enable HTTPS (recommended for production)
HTTPS_ENABLED=true

# Secure PostgreSQL connection with SSL
DB_CONNECTION_URI="postgresql://user:pass@host:5432/db?sslmode=require"

# For base64-encoded SSL certificate
DB_ROOT_CERT="<base64-encoded-certificate>"

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Redis Security

Use authentication and TLS for Redis:

# Redis with TLS (if supported by your Redis deployment)
REDIS_URL="rediss://user:password@redis:6380"

# Redis Sentinel configuration for high availability
REDIS_SENTINEL_HOSTS="192.168.65.254:26379,192.168.65.254:26380"
REDIS_SENTINEL_MASTER_NAME="mymaster"
REDIS_SENTINEL_ENABLE_TLS=true
REDIS_SENTINEL_USERNAME="sentinel_user"
REDIS_SENTINEL_PASSWORD="sentinel_password"

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Network Access Controls

Configure network restrictions and firewall rules:

# Limit CORS to specific domains
CORS_ALLOWED_ORIGINS=["https://your-app.example.com"]

# Prevent connections to internal/private IP addresses
# This blocks access to internal services like metadata endpoints,
# internal APIs, databases, and other sensitive infrastructure
ALLOW_INTERNAL_IP_CONNECTIONS=false

Implement network firewalls. Restrict network access to only necessary services:

  • Required ports: Infisical API (8080) and HTTPS (if applicable)
  • Database access: Restrict PostgreSQL and Redis to authorized sources only
  • Principle: Default deny incoming, allow only required traffic
  • Implementation: See your deployment-specific section below for exact configuration

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Application Security

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Site Configuration

Set proper site URL for your Infisical instance:

# Required - Must be absolute URL with protocol
SITE_URL="https://app.infisical.com"

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SMTP Security

Use TLS for email communications:

# SMTP with TLS
SMTP_HOST="smtp.example.com"
SMTP_PORT="587"
SMTP_USERNAME="your-smtp-user"
SMTP_PASSWORD="your-smtp-password"
SMTP_REQUIRE_TLS=true
SMTP_IGNORE_TLS=false
SMTP_FROM_ADDRESS="[email protected]"
SMTP_FROM_NAME="Infisical"

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Privacy Configuration

Control telemetry and data collection:

# Optional - Disable telemetry (enabled by default)
TELEMETRY_ENABLED=false

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Database Security

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High Availability Configuration

Configure database read replicas for high availability PostgreSQL setups:

# Read replica configuration (JSON format)
DB_READ_REPLICAS='[{"DB_CONNECTION_URI":"postgresql://user:pass@replica:5432/db?sslmode=require"}]'

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Operational Security

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User Access Management

Establish user off-boarding procedures. Remove access promptly when users leave:

  1. Remove user from organization
  2. Revoke active service tokens
  3. Remove from external identity providers
  4. Audit access logs for the user’s activity
  5. Rotate any shared secrets the user had access to

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Maintenance and Updates

Keep frequent upgrade cadence. Regularly update to the latest Infisical version for your deployment method.

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Deployment-Specific Hardening

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Docker Deployment

These recommendations are specific to Docker deployments of Infisical.

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Container Security

Use read-only root filesystems. Prevent runtime modifications while allowing necessary temporary access:

# Run with read-only filesystem but allow /tmp access
docker run --read-only \
  --tmpfs /tmp:rw,exec,size=1G \
  infisical/infisical:latest

Note: Infisical requires temporary directory access for:

  • Secret scanning operations
  • SSH certificate generation and validation

The --tmpfs mounts provide secure, isolated temporary storage that is:

  • Automatically cleaned up on container restart
  • Limited in size to prevent disk exhaustion
  • Isolated from the host system
  • Wiped on container removal

Drop unnecessary capabilities. Remove all Linux capabilities:

# Drop all capabilities
docker run --cap-drop=ALL infisical/infisical:latest

Use specific image tags. Never use latest tags in production:

# Use specific version tags
docker run infisical/infisical:v0.93.1-postgres

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Resource Management

Set resource limits. Prevent resource exhaustion attacks:

# Set memory and CPU limits
docker run --memory=1g --cpus=0.5 infisical/infisical:latest

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Health Monitoring

Configure health checks. Set up Docker health checks:

# In Dockerfile or docker-compose.yml
HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
  CMD curl -f http://localhost:8080/api/status || exit 1

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Network Security

Host firewall configuration. Configure host-level firewall for Docker deployments:

# Docker manages its own iptables rules, but configure host firewall
sudo ufw default deny incoming
sudo ufw default allow outgoing

# Allow Docker-mapped ports (adjust based on your port mapping)
sudo ufw allow 8080/tcp  # If mapping container 8080 to host 8080
sudo ufw allow 443/tcp   # If terminating HTTPS at host level

# Enable firewall
sudo ufw --force enable

# Verify Docker iptables integration
sudo iptables -L DOCKER

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Maintenance

Regular updates. Monitor Docker Hub for new releases and update your image tags regularly.

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Kubernetes Deployment

These recommendations are specific to Kubernetes deployments of Infisical.

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Pod Security

Use Pod Security Standards. Apply restricted security profile:

# Namespace-level Pod Security Standards
apiVersion: v1
kind: Namespace
metadata:
  name: infisical
  labels:
    pod-security.kubernetes.io/enforce: restricted
    pod-security.kubernetes.io/audit: restricted
    pod-security.kubernetes.io/warn: restricted

Configure security context. Set comprehensive security context:

# Deployment security context
apiVersion: apps/v1
kind: Deployment
metadata:
  name: infisical
spec:
  template:
    spec:
      securityContext:
        runAsNonRoot: true
        runAsUser: 1001
        fsGroup: 1001
      containers:
        - name: infisical
          image: infisical/infisical:v0.93.1-postgres
          securityContext:
            readOnlyRootFilesystem: true
            allowPrivilegeEscalation: false
            runAsNonRoot: true
            runAsUser: 1001
            capabilities:
              drop:
                - ALL
          resources:
            limits:
              memory: 1000Mi
              cpu: 500m
            requests:
              cpu: 350m
              memory: 512Mi

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Network Security

Configure network policies. Restrict pod-to-pod communication:

# Example Kubernetes NetworkPolicy
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: infisical-netpol
  namespace: infisical
spec:
  podSelector:
    matchLabels:
      app: infisical
  policyTypes:
    - Ingress
    - Egress
  ingress:
    - from:
        - namespaceSelector:
            matchLabels:
              name: ingress-system
      ports:
        - protocol: TCP
          port: 8080
  egress:
    - to:
        - podSelector:
            matchLabels:
              app: postgres
      ports:
        - protocol: TCP
          port: 5432
    - to:
        - podSelector:
            matchLabels:
              app: redis
      ports:
        - protocol: TCP
          port: 6379

Infrastructure firewall considerations. In addition to the universal host firewalls, implement infrastructure-level security:

For cloud deployments (AWS Security Groups, Azure NSGs, or GCP Firewall Rules):

  • Allow ingress from load balancer to NodePort/ClusterIP service
  • Allow egress to managed databases
  • Block all other traffic

For on-premises deployments, ensure node-level firewalls allow:

  • Ingress traffic from ingress controllers
  • Egress traffic to external services (databases, SMTP)

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Access Control

Use dedicated service accounts. Create service accounts with minimal permissions:

# Service account configuration
apiVersion: v1
kind: ServiceAccount
metadata:
  name: infisical
  namespace: infisical
automountServiceAccountToken: false
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: infisical
spec:
  template:
    spec:
      serviceAccountName: infisical

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Ingress Security

Configure ingress with TLS. Set up secure ingress:

# Secure ingress configuration
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: infisical-ingress
  namespace: infisical
  annotations:
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
    nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
spec:
  ingressClassName: nginx
  tls:
    - secretName: infisical-tls
      hosts:
        - app.example.com
  rules:
    - host: app.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: infisical
                port:
                  number: 8080

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Secret Management

Use Kubernetes secrets. Store sensitive configuration securely:

# Kubernetes secret for environment variables
apiVersion: v1
kind: Secret
metadata:
  name: infisical-secrets
  namespace: infisical
type: Opaque
stringData:
  AUTH_SECRET: "<generate-with-openssl-rand-base64-32>"
  ENCRYPTION_KEY: "<generate-with-openssl-rand-hex-16>"
  DB_CONNECTION_URI: "<your-postgres-connection-string>"
  REDIS_URL: "<your-redis-connection-string>"
  SITE_URL: "<your-site-url>"

Note: Kubernetes secrets are only base64-encoded by default and are not encrypted at rest unless you explicitly enable etcd encryption. For production environments, you should:

  • Enable etcd encryption at rest to protect secrets stored in the cluster
  • Limit access to etcd and Kubernetes API to only trusted administrators

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Health Monitoring

Set up health checks. Configure readiness and liveness probes:

# Health check configuration
containers:
  - name: infisical
    readinessProbe:
      httpGet:
        path: /api/status
        port: 8080
      initialDelaySeconds: 10
      periodSeconds: 5
    livenessProbe:
      httpGet:
        path: /api/status
        port: 8080
      initialDelaySeconds: 30
      periodSeconds: 10

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Infrastructure Considerations

Use managed databases (if possible). For production deployments, consider using managed PostgreSQL and Redis services instead of in-cluster instances when feasible, as they typically provide better security, backup, and maintenance capabilities.

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Maintenance

Regular updates. Monitor Docker Hub for new releases and update your deployment manifests with new image tags regularly.

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Linux Binary Deployment

These recommendations are specific to Linux binary deployments of Infisical.

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System User Management

Create dedicated user account. Run Infisical under a dedicated service account:

# Create dedicated user
sudo useradd --system --shell /bin/false --home-dir /opt/infisical infisical

# Create application directory
sudo mkdir -p /opt/infisical
sudo chown infisical:infisical /opt/infisical

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Service Configuration

Configure systemd service. Create a secure systemd service:

# /etc/systemd/system/infisical.service
[Unit]
Description=Infisical Secret Management
After=network.target

[Service]
Type=simple
# IMPORTANT: Change from default 'root' user to dedicated service account
User=infisical
Group=infisical
WorkingDirectory=/opt/infisical
ExecStart=/opt/infisical/infisical-linux-amd64
Restart=always
RestartSec=10

# Security settings
NoNewPrivileges=true
ProtectSystem=strict
ProtectHome=true
ReadWritePaths=/opt/infisical
PrivateTmp=true
ProtectKernelTunables=true
ProtectKernelModules=true
ProtectControlGroups=true
RestrictSUIDSGID=true
LimitCORE=0
MemorySwapMax=0

# Environment file
EnvironmentFile=/etc/infisical/environment

[Install]
WantedBy=multi-user.target

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Configuration Security

Secure environment configuration. Store environment variables securely:

# Create secure config directory
sudo mkdir -p /etc/infisical
sudo chmod 750 /etc/infisical
sudo chown root:infisical /etc/infisical

# Create environment file
sudo touch /etc/infisical/environment
sudo chmod 640 /etc/infisical/environment
sudo chown root:infisical /etc/infisical/environment

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System Security

Disable memory swapping. Prevent sensitive data from being written to disk:

# Disable swap immediately
sudo swapoff -a

# Disable swap permanently (comment out swap entries)
sudo sed -i '/swap/d' /etc/fstab

Disable core dumps. Prevent potential exposure of encryption keys:

# Set system-wide core dump limits
echo "* hard core 0" | sudo tee -a /etc/security/limits.conf

# Disable core dumps for current session
ulimit -c 0

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File Permissions

Secure file permissions. Set proper permissions on application files:

# Set binary permissions
sudo chmod 755 /opt/infisical/infisical-linux-amd64
sudo chown infisical:infisical /opt/infisical/infisical-linux-amd64

# Set config file permissions
sudo chmod 640 /etc/infisical/environment
sudo chown root:infisical /etc/infisical/environment

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Network Security

Host firewall configuration. Configure comprehensive firewall for Linux binary deployments:

# Configure UFW firewall
sudo ufw default deny incoming
sudo ufw default allow outgoing

# Allow Infisical API access
sudo ufw allow 8080/tcp

# Allow HTTPS (if terminating TLS at Infisical)
sudo ufw allow 443/tcp

# If running PostgreSQL locally, restrict to localhost
sudo ufw allow from 127.0.0.1 to any port 5432

# If running Redis locally, restrict to localhost
sudo ufw allow from 127.0.0.1 to any port 6379

# Enable firewall
sudo ufw --force enable

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System Maintenance

Synchronize system clocks. Ensure accurate time for JWT tokens and audit logs:

# Install and configure NTP
sudo apt-get update
sudo apt-get install -y ntp
sudo systemctl enable ntp
sudo systemctl start ntp

# Verify time synchronization
timedatectl status

Regular updates. Monitor Cloudsmith releases for new binary versions and update your installation regularly.

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Enterprise Security Features

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Hardware Security Module (HSM) Integration

For the highest level of encryption security, integrate with Hardware Security Modules:

HSM integration provides hardware-protected encryption keys stored on tamper-proof devices, offering superior security for encryption operations:

  • Supported HSM Providers: Thales Luna Cloud HSM, AWS CloudHSM, Fortanix HSM
  • Root Key Protection: HSM encrypts Infisical’s root encryption keys using hardware-protected keys
  • Enterprise Requirements: Ideal for government, financial, and healthcare organizations
# HSM Environment Variables (example for production)
HSM_LIB_PATH="/path/to/hsm/library.so"
HSM_PIN="your-hsm-pin"
HSM_SLOT="0"
HSM_KEY_LABEL="infisical-root-key"

For complete HSM setup instructions, see the HSM Integration Guide.

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External Key Management Service (KMS) Integration

Leverage cloud-native KMS providers for enhanced security and compliance:

Infisical can integrate with external KMS providers to encrypt project secrets, providing enterprise-grade key management:

  • Supported Providers: AWS KMS, Google Cloud KMS, Azure Key Vault (coming soon)
  • Workspace Key Protection: Each project’s encryption key is protected by your external KMS
  • Envelope Encryption: Infisical uses your cloud KMS to encrypt/decrypt project workspace keys, which in turn encrypt the actual secret data
  • Compliance: Leverage your cloud provider’s compliance certifications (FedRAMP, SOC2, ISO 27001)

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Benefits for Production Deployments

  • Separation of Concerns: Keys managed in your cloud infrastructure, separate from Infisical
  • Regulatory Compliance: Use your existing compliance-certified KMS infrastructure
  • Audit Integration: KMS operations logged in your cloud provider’s audit trails
  • Disaster Recovery: Keys backed by your cloud provider’s HA and backup systems
  • Access Controls: Leverage your cloud IAM for KMS access management

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Configuration Resources

For external KMS configuration, see:

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Advanced Security Configurations

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Backup Security

Configure backup encryption. Encrypt PostgreSQL backups:

# PostgreSQL backup with encryption
pg_dump $DB_CONNECTION_URI | gpg --cipher-algo AES256 --compress-algo 1 --symmetric --output backup.sql.gpg

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Monitoring and Logging

Implement log monitoring. Set up centralized logging for security analysis and audit trails. Configure your SIEM or logging platform to monitor Infisical operations.

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Security Updates

Regular security updates. Monitor the Infisical repository for security updates and apply them promptly.

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Compliance and Monitoring

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Enterprise Compliance Requirements

For enterprise deployments requiring compliance certifications:

  • Implement audit log retention policies
  • Set up security event monitoring and alerting
  • Configure automated vulnerability scanning
  • Establish incident response procedures
  • Document security controls for compliance audits

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Standards Compliance

FIPS 140-3 Compliance. Infisical is actively working on FIPS 140-3 compliance to meet U.S. and Canadian government cryptographic standards. This will provide validated cryptographic modules for organizations requiring certified encryption implementations.