Origin Validation Error in connect-xcors npm Package Affects Web Applications

CVE-2026-18825

What is CVE-2026-18825?

The connect-xcors npm package exhibits an Origin Validation Error in its middleware. This flaw allows attackers to bypass origin verification, which could enable unauthorized cross-domain authenticated requests. As a result, compromised applications may be susceptible to various security threats, potentially exposing sensitive data or enabling further exploitation by malicious actors. It is crucial for developers using the connect-xcors package to assess their implementations and upgrade to the latest version to mitigate this vulnerability.

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