{"id":"EUVD-2026-28789","revision":"2adc584c49f64c5b94c8b44f7c42dff7","records":[{"revision":"2adc584c49f64c5b94c8b44f7c42dff7","observedAt":"2026-11-05T08:55:01.238+00:00","statement":{"source":"euvd","id":"EUVD-2026-28789","aliases":["CVE-2026-41070","GHSA-246w-jgmq-88fg"],"title":"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 p…","description":"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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","score":10,"severity":null}],"references":["https://github.com/jkroepke/openvpn-auth-oauth2/security/advisories/GHSA-246w-jgmq-88fg","https://github.com/jkroepke/openvpn-auth-oauth2/commit/36f69a6c67c1054da7cbfa04ced3f0555127c8f2"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28789","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 8, 2026, 3:14:46 PM","dateUpdated":"May 8, 2026, 4:05:34 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-28789","identifiers":["EUVD-2026-28789","CVE-2026-41070","GHSA-246w-jgmq-88fg"]},"retained":false,"historicalAffected":[]}],"coverage":[]}