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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
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| flowise | npm | < 1.8.1 | 1.8.1 |
The vulnerability stemmed from improper authentication checks in the middleware handling /api/v1 routes. The original implementation used non-regex string matching (req.url.includes()) which was case-sensitive. Attackers could bypass authentication by using alternate casing in the URL path. The patch introduced case-insensitive regex matching (/api/v1/ with 'i' flag), confirming this was the vulnerable code path. This authentication bypass would let attackers reach protected endpoints that might execute untrusted code.
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