{"id":"CVE-2026-106017","title":"Improper certificate validation in the OpenVPN 3 Core library version 3.4 through 3.11.7 allows attackers to circumvent extended key usage restrictions.","summary":"Improper certificate validation in the OpenVPN 3 Core library version 3.4 through 3.11.7 allows attackers to circumvent extended key usage restrictions.","severity":"medium","cvss":6.3,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U","cvssSource":"cna","cwe":["CWE-295"],"vendor":"OpenVPN","product":"OpenVPN 3 Core Library","affected":["3_core_library >= 3.4 <= 3.11.7"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T09:18:01.956Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106017","references":[{"url":"https://community.openvpn.net/Security%20Announcements/CVE-2026-106017"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T09:34:48.703Z","slug":"CVE-2026-106017","body":"## Overview\n\nImproper certificate validation in the OpenVPN 3 Core library version 3.4 through 3.11.7 allows attackers to circumvent extended key usage restrictions.\n\n## Affected\n\n- `3_core_library >= 3.4 <= 3.11.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":34.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}