{"id":"USN-8286-1","summary":"openvpn vulnerabilities","details":"Guannan Wang, Zhanpeng Liu, Guancheng Li, and Emma Reuter\ndiscovered that OpenVPN incorrectly handled suitably malformed\npackets with valid tls-crypt-v2 keys. An attacker could possibly use\nthis issue to cause OpenVPN to crash, resulting in a denial of\nservice. (CVE-2026-35058)\n\nGuannan Wang, Zhanpeng Liu, and Guancheng Li discovered that\nOpenVPN had a race condition in the TLS handshake process that could\nleak packet data from a previous handshake under certain\ncircumstances. An attacker could possibly use this issue to obtain\nsensitive information. (CVE-2026-40215)","modified":"2026-06-09T21:15:29.210041066Z","published":"2026-05-20T13:16:24Z","related":["UBUNTU-CVE-2026-35058","UBUNTU-CVE-2026-40215"],"upstream":["UBUNTU-CVE-2026-35058","UBUNTU-CVE-2026-40215"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8286-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-35058"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-40215"}],"affected":[{"package":{"name":"openvpn","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/openvpn?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.11-0ubuntu0.22.04.3"}]}],"versions":["2.5.1-3ubuntu1","2.5.1-3ubuntu2","2.5.1-3ubuntu4","2.5.1-3ubuntu5","2.5.5-1ubuntu1","2.5.5-1ubuntu3","2.5.5-1ubuntu3.1","2.5.9-0ubuntu0.22.04.2","2.5.9-0ubuntu0.22.04.3","2.5.11-0ubuntu0.22.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.5.11-0ubuntu0.22.04.3","binary_name":"openvpn"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-35058"},{"severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-40215"}],"ecosystem":"Ubuntu:22.04:LTS"}}},{"package":{"name":"openvpn","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/openvpn?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.19-0ubuntu0.24.04.2"}]}],"versions":["2.6.5-0ubuntu1","2.6.7-1ubuntu1","2.6.9-1ubuntu2","2.6.9-1ubuntu3","2.6.9-1ubuntu4","2.6.9-1ubuntu4.1","2.6.12-0ubuntu0.24.04.1","2.6.12-0ubuntu0.24.04.3","2.6.14-0ubuntu0.24.04.1","2.6.14-0ubuntu0.24.04.2","2.6.14-0ubuntu0.24.04.3","2.6.19-0ubuntu0.24.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.6.19-0ubuntu0.24.04.2","binary_name":"openvpn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-35058"},{"severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-40215"}],"ecosystem":"Ubuntu:24.04:LTS"}}},{"package":{"name":"openvpn","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/openvpn?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.19-0ubuntu0.25.10.2"}]}],"versions":["2.6.13-1ubuntu3","2.6.14-1ubuntu1","2.6.14-2ubuntu1","2.6.14-2ubuntu1.1","2.6.19-0ubuntu0.25.10.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.6.19-0ubuntu0.25.10.2","binary_name":"openvpn"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-35058"},{"severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-40215"}],"ecosystem":"Ubuntu:25.10"}}},{"package":{"name":"openvpn","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/openvpn?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0-1ubuntu1.1"}]}],"versions":["2.6.14-2ubuntu1","2.6.15-1ubuntu1","2.7.0~rc5-1ubuntu5","2.7.0~rc6-1ubuntu1","2.7.0-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.7.0-1ubuntu1.1","binary_name":"openvpn"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json","cves_map":{"cves":[{"id":"CVE-2026-35058","severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-40215","severity":[{"score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:26.04:LTS"}}}],"schema_version":"1.7.5"}