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fix: pin Swagger UI CDN assets with SRI #4082

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Merged
ardatan merged 1 commit into from
Aug 7, 2026
+26 −6
Merged

fix: pin Swagger UI CDN assets with SRI #4082

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7 changes: 7 additions & 0 deletions .changeset/swagger-ui-sri.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
---
'fets': patch
---

Pin Swagger UI CDN assets and load them with Subresource Integrity (SRI)

Swagger UI previously pulled unversioned `unpkg.com/swagger-ui-dist` scripts/styles without integrity checks. Assets are now pinned to `swagger-ui-dist@5.11.0` (and the dark theme CSS) and loaded via `<link>`/`<script>` tags with `integrity` + `crossorigin`, so a compromised CDN cannot silently swap the payload.
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25 changes: 19 additions & 6 deletions packages/fets/src/swagger-ui.html
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Original file line number Diff line number Diff line change
Expand Up @@ -5,12 +5,21 @@
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="SwaggerUI" />
<title>SwaggerUI</title>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/gh/Itz-fork/Fastapi-Swagger-UI-Dark/assets/swagger_ui_dark.min.css"
media="(prefers-color-scheme: dark)"
crossorigin="anonymous"
integrity="sha384-uFFUYDzMQNCAsNQHyjX9WExpaDBrtT+3F/7yo37l/lUEsOa7yAUqDFRlDEG2u8RY"
/>
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ardatan marked this conversation as resolved.
<link
rel="stylesheet"
href="https://unpkg.com/swagger-ui-dist@5.11.0/swagger-ui.css"
media="(prefers-color-scheme: light)"
crossorigin="anonymous"
integrity="sha384-+yyzNgM3K92sROwsXxYCxaiLWxWJ0G+v/9A+qIZ2rgefKgkdcmJI+L601cqPD/Ut"
/>
<style>
@import 'https://cdn.jsdelivr.net/gh/Itz-fork/Fastapi-Swagger-UI-Dark/assets/swagger_ui_dark.min.css'
(prefers-color-scheme: dark);

@import 'https://unpkg.com/swagger-ui-dist/swagger-ui.css' (prefers-color-scheme: light);

@media (prefers-color-scheme: dark) {
.swagger-ui textarea {
background: hsl(358.8deg 1.05% 1.91% / 80%) !important;
Expand Down Expand Up @@ -42,7 +51,11 @@

<body>
<div id="swagger-ui"></div>
<script src="https://unpkg.com/swagger-ui-dist/swagger-ui-bundle.js" crossorigin></script>
<script
src="https://unpkg.com/swagger-ui-dist@5.11.0/swagger-ui-bundle.js"
crossorigin="anonymous"
integrity="sha384-qn5tagrAjZi8cSmvZ+k3zk4+eDEEUcP9myuR2J6V+/H6rne++v6ChO7EeHAEzqxQ"
></script>
<script>
window.onload = () => {
window.ui = SwaggerUIBundle(__SWAGGER_UI_OPTIONS__);
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