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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AI| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| undici | npm | <= 5.8.1 | 5.8.2 |
JavaScriptJavaScriptMiggo AIRoot Cause AnalysisThe vulnerability manifests in the header processing logic of undici's request mechanism. The commit diff shows a critical modification in processHeader() where a headerCharRegex check was added specifically for Content-Type header values. Prior to the patch, the function only checked the header key was 'content-type' without validating the header value. This allowed CRLF sequences in the value to split the request into multiple malicious requests. The added test case in request-crlf.js directly validates this scenario, confirming the vulnerable code path was in the header processing function.
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