CVE Catalog

CVE-2026-18825

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.18%

6th percentile - higher than 6% of all known CVEs

Summary

An Origin Validation Error in the middleware of the connect-xcors npm package allows an attacker to bypass origin verification and perform a cross-domain authenticated request. This can lead to unauthorized access to protected resources in the context of a logged-in user.

Risk Assessment

An attacker can perform authenticated cross-domain requests on behalf of a victim, potentially resulting in data disclosure or unwanted operations. The risk affects applications using the connect-xcors package.

Recommendation

Update the connect-xcors package to a version containing the fix or consider replacing it with an alternative CORS solution. Verify the CORS header configuration in your application.

Related vulnerabilities

Original NVD description (English source)

An Origin Validation Error in the middleware of the connect-xcors npm package allows an attacker to bypass origin verification and perform a cross domain authenticated request.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS