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| 95111e | uddr | 2026-09-23 14:52:16 | 1 | # CVE-2026-81830 - Windows openvpnserv config path validation bypass via sibling directories |
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| 3 | OpenVPN 2.x on Windows allows local users to start openvpn.exe with a config file outside the administratively allowed config directories, because `CheckConfigPath()` in `openvpnserv` did not detect and refuse sibling directories of an allowed path. |
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| 5 | OpenVPN version 2.4.0 through 2.6.22 are affected. This is fixed in version 2.6.23 <2.7.x FIXED VERSION TBD>. |
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| 7 | CVE Record: [CVE-2026-81830](https://www.cve.org/CVERecord?id=CVE-2026-81830) |
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| 9 | Github: |
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| 10 | * [OpenVPN/openvpn-private-issues#166](https://github.com/OpenVPN/openvpn-private-issues/issues/166) |
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| 12 | Release notes: |
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| 13 | * [openvpn-2.6.23](https://community.openvpn.net/ReleaseHistory#openvpn-2623-released-23-september-2026) |
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| 15 | Reported-By: Harshit Varu |