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fix(nextjs): remove internal staging host from the default connect-src #9898

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Merged
Grundlefleck merged 5 commits into from
Oct 2, 2026
Merged

fix(nextjs): remove internal staging host from the default connect-src #9898

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e14499a
fix(nextjs): remove internal staging host from the default connect-src
Grundlefleck Sep 23, 2026
60916e7
Merge branch 'main' into graham/csp-remove-staging-image-host
Grundlefleck Sep 23, 2026
704a7ae
Merge branch 'main' into graham/csp-remove-staging-image-host
Grundlefleck Sep 24, 2026
19a8643
test(nextjs): drop redundant staging-host assertion
Grundlefleck Oct 1, 2026
b2923f2
Merge branch 'main' into graham/csp-remove-staging-image-host
Grundlefleck Oct 1, 2026
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5 changes: 5 additions & 0 deletions .changeset/olive-rings-repeat.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'@clerk/nextjs': patch
---

Remove `https://images.clerkstage.dev` from the default `connect-src` Content Security Policy directive. It is a Clerk-internal storage host that no application connects to. Organization logos are served from `https://img.clerk.com`, which stays in the default.
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12 changes: 6 additions & 6 deletions packages/nextjs/src/server/__tests__/content-security-policy.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ describe('CSP Header Utils', () => {

expect(directives).toContainEqual("default-src 'self'");
expect(directives).toContainEqual(
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://images.clerkstage.dev https://*.protect.clerk.com:* clerk.example.com",
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://*.protect.clerk.com:* clerk.example.com",
);
expect(directives).toContainEqual("form-action 'self'");
expect(directives).toContainEqual(
Expand Down Expand Up @@ -116,7 +116,7 @@ describe('CSP Header Utils', () => {
const directives = headerValue.split('; ');
expect(directives).toContainEqual("default-src 'self'");
expect(directives).toContainEqual(
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://images.clerkstage.dev https://*.protect.clerk.com:* clerk.example.com",
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://*.protect.clerk.com:* clerk.example.com",
);
expect(directives).toContainEqual("form-action 'self'");
expect(directives).toContainEqual(
Expand Down Expand Up @@ -265,7 +265,7 @@ describe('CSP Header Utils', () => {

const directives = result.headers[0][1].split('; ');
expect(directives).toContainEqual(
`connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://images.clerkstage.dev https://*.protect.clerk.com:* clerk.example.com https://api.example.com`,
`connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://*.protect.clerk.com:* clerk.example.com https://api.example.com`,
);

const imgSrcDirective = directives.find(d => d.startsWith('img-src')) || '';
Expand All @@ -285,7 +285,7 @@ describe('CSP Header Utils', () => {
const directives = result.headers[0][1].split('; ');

expect(directives).toContainEqual(
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://images.clerkstage.dev https://*.protect.clerk.com:* clerk.example.com",
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://*.protect.clerk.com:* clerk.example.com",
);
expect(directives).toContainEqual("default-src 'self'");
expect(directives).toContainEqual("form-action 'self'");
Expand Down Expand Up @@ -331,7 +331,7 @@ describe('CSP Header Utils', () => {
const directives = result.headers[0][1].split('; ');

expect(directives).toContainEqual(
`connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://images.clerkstage.dev https://*.protect.clerk.com:* clerk.example.com`,
`connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://*.protect.clerk.com:* clerk.example.com`,
);
expect(directives).toContainEqual(`img-src 'self' https://img.clerk.com`);
expect(directives).toContainEqual(
Expand Down Expand Up @@ -397,7 +397,7 @@ describe('CSP Header Utils', () => {
const directives = result.headers[0][1].split('; ');

expect(directives).toContainEqual(
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://images.clerkstage.dev https://*.protect.clerk.com:* clerk.example.com",
"connect-src 'self' https://clerk-telemetry.com https://*.clerk-telemetry.com https://api.stripe.com https://maps.googleapis.com https://img.clerk.com https://*.protect.clerk.com:* clerk.example.com",
);
expect(directives).toContainEqual("default-src 'self'");
expect(directives).toContainEqual("form-action 'self'");
Expand Down
1 change: 0 additions & 1 deletion packages/nextjs/src/server/content-security-policy.ts
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Expand Up @@ -106,7 +106,6 @@ class ContentSecurityPolicyDirectiveManager {
'https://api.stripe.com',
'https://maps.googleapis.com',
'https://img.clerk.com',
'https://images.clerkstage.dev',
clerkProtectionConnectOrigin,
],
'default-src': ['self'],
Expand Down
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