diff --git a/src/core/webview/ClineProvider.ts b/src/core/webview/ClineProvider.ts
index ceb66717670..140a57e4fe1 100644
--- a/src/core/webview/ClineProvider.ts
+++ b/src/core/webview/ClineProvider.ts
@@ -679,9 +679,9 @@ export class ClineProvider
 			`font-src ${webview.cspSource} data:`,
 			`style-src ${webview.cspSource} 'unsafe-inline' https://* http://${localServerUrl} http://0.0.0.0:${localPort}`,
 			`img-src ${webview.cspSource} https://storage.googleapis.com https://img.clerk.com data:`,
-			`media-src ${webview.cspSource}`,
+			`media-src ${webview.cspSource} file+.vscode-resource.vscode-cdn.net:`,
 			`script-src 'unsafe-eval' ${webview.cspSource} https://* https://*.posthog.com http://${localServerUrl} http://0.0.0.0:${localPort} 'nonce-${nonce}'`,
-			`connect-src https://* https://*.posthog.com ws://${localServerUrl} ws://0.0.0.0:${localPort} http://${localServerUrl} http://0.0.0.0:${localPort}`,
+			`connect-src https://* https://*.posthog.com ws://${localServerUrl} ws://0.0.0.0:${localPort} http://${localServerUrl} http://0.0.0.0:${localPort} file+.vscode-resource.vscode-cdn.net:`,
 		]
 
 		return /*html*/ `
@@ -763,7 +763,7 @@ export class ClineProvider
             <meta charset="utf-8">
             <meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no">
             <meta name="theme-color" content="#000000">
-            <meta http-equiv="Content-Security-Policy" content="default-src 'none'; font-src ${webview.cspSource} data:; style-src ${webview.cspSource} 'unsafe-inline'; img-src ${webview.cspSource} https://storage.googleapis.com https://img.clerk.com data:; media-src ${webview.cspSource}; script-src ${webview.cspSource} 'wasm-unsafe-eval' 'nonce-${nonce}' https://us-assets.i.posthog.com 'strict-dynamic'; connect-src https://openrouter.ai https://api.requesty.ai https://us.i.posthog.com https://us-assets.i.posthog.com;">
+            <meta http-equiv="Content-Security-Policy" content="default-src 'none'; font-src ${webview.cspSource} data:; style-src ${webview.cspSource} 'unsafe-inline'; img-src ${webview.cspSource} https://storage.googleapis.com https://img.clerk.com data:; media-src ${webview.cspSource} file+.vscode-resource.vscode-cdn.net:; script-src ${webview.cspSource} 'wasm-unsafe-eval' 'nonce-${nonce}' https://us-assets.i.posthog.com 'strict-dynamic'; connect-src https://openrouter.ai https://api.requesty.ai https://us.i.posthog.com https://us-assets.i.posthog.com file+.vscode-resource.vscode-cdn.net:;">
             <link rel="stylesheet" type="text/css" href="${stylesUri}">
 			<link href="${codiconsUri}" rel="stylesheet" />
 			<script nonce="${nonce}">
diff --git a/src/core/webview/__tests__/ClineProvider.spec.ts b/src/core/webview/__tests__/ClineProvider.spec.ts
index 5272c334510..dfca031cd1b 100644
--- a/src/core/webview/__tests__/ClineProvider.spec.ts
+++ b/src/core/webview/__tests__/ClineProvider.spec.ts
@@ -471,10 +471,13 @@ describe("ClineProvider", () => {
 
 		expect(mockWebviewView.webview.html).toContain("<!DOCTYPE html>")
 
-		// Verify Content Security Policy contains the necessary PostHog domains
+		// Verify Content Security Policy contains the necessary PostHog domains and file protocol
 		expect(mockWebviewView.webview.html).toContain(
-			"connect-src https://openrouter.ai https://api.requesty.ai https://us.i.posthog.com https://us-assets.i.posthog.com",
+			"connect-src https://openrouter.ai https://api.requesty.ai https://us.i.posthog.com https://us-assets.i.posthog.com file+.vscode-resource.vscode-cdn.net:",
 		)
+		// Verify media-src includes file protocol for audio files
+		expect(mockWebviewView.webview.html).toContain("media-src")
+		expect(mockWebviewView.webview.html).toContain("file+.vscode-resource.vscode-cdn.net:")
 
 		// Extract the script-src directive section and verify required security elements
 		const html = mockWebviewView.webview.html
