Private API has no resource policy restricting access

Severity: High
Service: API Gateway
Check ID: APIGW_PRIVATE_NO_POLICY

What this check finds

This API Gateway REST API uses a PRIVATE endpoint type but has no resource policy. Without a resource policy, the API may be reachable from unintended VPCs or principals.

Passing looks like: Private API has a restricting resource policy.

How to fix it

Attach a resource policy that explicitly allows access only from intended VPC endpoints.

AWS console

API Gateway → REST API → Resource Policy → Edit.

Compliance controls it is evidence for

A failing result counts against these controls in KloudLytics; a passing one is evidence towards them. How compliance mapping works

Compliance controls mapped to Private API has no resource policy restricting access
Framework	Controls
NIST SP 800-53 Rev5 (Moderate)	AC-3 Access Enforcement SC-7 Boundary Protection
NIST Cybersecurity Framework 2.0	PR.AA-05 Access permissions and authorizations are enforced with least privilege PR.IR-01 Networks and environments are protected from unauthorized logical access and usage
ISO/IEC 27001:2022 Annex A	A.5.15 Access control A.8.20 Networks security

Checked on every scan

KloudLytics runs this check each time it scans a connected AWS account, through a read-only role, and lists every affected resource with its region. On Pro and Business a fix is written for the specific resource rather than the general case above. The exact access it needs

More API Gateway checks

All API Gateway checks