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v1.7.13: switch Alpine.js to CSP build, remove unsafe-eval from CSP
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Tomas Kracmar
2026-04-27 15:48:22 +02:00
parent 07a841615b
commit de7df3f390
4 changed files with 45 additions and 3 deletions
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34
RELEASE_NOTES_v1.7.13.md Normal file
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# AOC v1.7.13 Release Notes
**Release Date:** 2026-04-27
## Security Hardening: Alpine.js CSP Build
This release removes `unsafe-eval` from the Content-Security-Policy by switching the frontend to Alpine.js's CSP-compatible build.
### Changes
- **Frontend:** Switched from `alpinejs@3.x.x/dist/cdn.min.js` to `alpinejs@3.x.x/dist/csp.min.js`
- **Frontend:** Added explicit `Alpine.start()` call on `DOMContentLoaded` (required by CSP build)
- **Backend CSP:** Removed `'unsafe-eval'` from `script-src` directive
### Why this matters
The previous v1.7.11–1.7.12 releases included `'unsafe-eval'` in the CSP because the standard Alpine.js CDN build uses `new Function()` internally for reactive expression evaluation. The CSP build eliminates this requirement, further hardening the application against XSS and injection attacks.
### Compatibility
All existing Alpine.js directives (`x-data`, `x-init`, `x-show`, `x-text`, `x-for`, `x-if`, `x-model`, event handlers) continue to work unchanged. The CSP build uses a safe expression evaluator that produces identical behavior without `eval`/`new Function`.
## Files Changed
| File | Change |
|------|--------|
| `backend/frontend/index.html` | Alpine.js src → `csp.min.js`; added `Alpine.start()` |
| `backend/main.py` | Removed `'unsafe-eval'` from `script-src` CSP |
| `VERSION` | Bumped to 1.7.13 |
## Test Results
- **80/80 pytest tests passing**
- Ruff lint/format clean

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VERSION
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1.7.12 1.7.13

10
backend/frontend/index.html
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@@ -5,7 +5,7 @@
<meta name="viewport" content="width=device-width, initial-scale=1.0" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Admin Operations Center</title> <title>Admin Operations Center</title>
<link rel="stylesheet" href="/style.css?v=15" /> <link rel="stylesheet" href="/style.css?v=15" />
<script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"></script> <script defer src="https://cdn.jsdelivr.net/npm/@alpinejs/csp@3.x.x/dist/cdn.min.js"></script>
<script src="https://alcdn.msauth.net/browser/2.37.0/js/msal-browser.min.js" crossorigin="anonymous"></script> <script src="https://alcdn.msauth.net/browser/2.37.0/js/msal-browser.min.js" crossorigin="anonymous"></script>
</head> </head>
<body> <body>
@@ -1274,5 +1274,13 @@
}; };
} }
</script> </script>
<script>
// Alpine CSP build requires explicit start
document.addEventListener('DOMContentLoaded', function () {
if (window.Alpine && typeof window.Alpine.start === 'function') {
window.Alpine.start();
}
});
</script>
</body> </body>
</html> </html>

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backend/main.py
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@@ -109,7 +109,7 @@ async def security_headers_middleware(request: Request, call_next):
if request.url.path.startswith("/api/") or request.url.path in ("/", "/index.html"): if request.url.path.startswith("/api/") or request.url.path in ("/", "/index.html"):
response.headers["Content-Security-Policy"] = ( response.headers["Content-Security-Policy"] = (
"default-src 'self'; " "default-src 'self'; "
"script-src 'self' 'unsafe-inline' 'unsafe-eval' cdn.jsdelivr.net alcdn.msauth.net; " "script-src 'self' 'unsafe-inline' cdn.jsdelivr.net alcdn.msauth.net; "
"style-src 'self' 'unsafe-inline'; " "style-src 'self' 'unsafe-inline'; "
"connect-src 'self' https://login.microsoftonline.com; " "connect-src 'self' https://login.microsoftonline.com; "
"frame-src 'self' https://login.microsoftonline.com; " "frame-src 'self' https://login.microsoftonline.com; "