CVE-2026-41070: jkroepke openvpn-auth-oauth2, заобикаляне на вход и

Описание

Оригинално описание

openvpn-auth-oauth2 is a plugin/management interface client for OpenVPN server to handle an OIDC based single sign-on (SSO) auth flows. From version 1.26.3 to before version 1.27.3, when openvpn-auth-oauth2 is deployed in the experimental plugin mode (shared library loaded by OpenVPN via the plugin directive), clients that do not support WebAuth/SSO (e.g., the openvpn CLI on Linux) are incorrectly admitted to the VPN despite being denied by the authentication logic. The default management-interface mode is not affected because it does not use the OpenVPN plugin return-code mechanism. This issue has been patched in version 1.27.3.

Засегнати продукти

• jkroepke openvpn-auth-oauth2: >= 1.26.3, < 1.27.3

Вид слабост

• CWE-287 Неправилна автентикация

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-41070
• https://nvd.nist.gov/vuln/detail/CVE-2026-41070
• https://github.com/jkroepke/openvpn-auth-oauth2/security/advisories/GHSA-246w-jgmq-88fg
• https://github.com/jkroepke/openvpn-auth-oauth2/commit/36f69a6c67c1054da7cbfa04ced3f0555127c8f2