Secrets Manager Secret Publicly Accessible

What this rule checks

Detects Secrets Manager secrets whose resource policy grants access to a wildcard or public principal.

How to fix it

1. 1Remove wildcard/public principals from the secret resource policy
2. 2Scope access to specific IAM principals or accounts

import { Secret } from 'aws-cdk-lib/aws-secretsmanager';
import { PolicyStatement, Effect, AnyPrincipal } from 'aws-cdk-lib/aws-iam';

const secret = new Secret(this, 'DbSecret');
secret.addToResourcePolicy(new PolicyStatement({
  effect: Effect.ALLOW,
  principals: [new AnyPrincipal()],
  actions: ['secretsmanager:GetSecretValue'],
  resources: ['*'],
}));

import { Secret } from 'aws-cdk-lib/aws-secretsmanager';
import { Role, ServicePrincipal } from 'aws-cdk-lib/aws-iam';

const role = new Role(this, 'AppServiceRole', { assumedBy: new ServicePrincipal('lambda.amazonaws.com') });
const secret = new Secret(this, 'DbSecret');
secret.grantRead(role);

CDK Insights pinpoints the exact file and line in your CDK source for every finding, so you can jump straight to the fix.

Affected resource types

Intentional? Suppress this finding

Sometimes a flag is deliberate — a genuinely public endpoint, say. You can dismiss secrets-manager-secret-public and the reason is kept in the report, not silently hidden.

In .cdk-insights.json:

{
  "ignoreRules": [
    { "id": "secrets-manager-secret-public", "reason": "Why this is intentional" }
  ]
}

Or inline in your CDK code:

Validations.of(scope).acknowledge({
  id: 'cdk-insights::secrets-manager-secret-public',
  reason: 'Why this is intentional',
});

Use the rule ID secrets-manager-secret-public shown above — not the CDK-* ID from SARIF / GitHub code scanning. To dismiss every finding on one construct instead, use ignorePaths. Suppression docs →