{"id":"CVE-2026-18825","title":"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.","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.","severity":"medium","cvss":5.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-346"],"vendor":"github.com/antono","product":"connect-xcors","affected":["connect-xcors <= 0.5.6"],"published":"2026-09-28","updated":"2026-09-28","sourceUpdated":"2026-09-28T13:17:21.680","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18825","references":[{"url":"https://cds.thalesgroup.com/en/tcs-cert/CVE-2026-18825","label":"64c5ae8f-7972-4697-86a0-7ada793ac795"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-28T13:02:07.195221Z"},"cvssSource":"cna","ingestedAt":"2026-09-28T13:09:42.236Z","slug":"CVE-2026-18825","body":"## Overview\n\nAn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}