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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AI
JavaScriptJavaScript| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| hono | npm | < 4.6.5 | 4.6.5 |
Miggo AIRoot Cause AnalysisThe vulnerability stems from how the CSRF middleware handles missing Content-Type headers. The original code used 'c.req.header('content-type') || ''' (line 76-89 in index.ts), which made requests without Content-Type headers pass the isRequestedByFormElementRe regex check. This allowed POST requests with empty/missing Content-Type to bypass CSRF validation. The patched version changes the default to 'text/plain' to properly enforce checks. The commit diff and vulnerability details directly point to this middleware handler as the vulnerable component.
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