—
GO-2026-4963
openvpn-auth-oauth2 returns FUNC_SUCCESS on client-deny, allowing unauthenticated VPN access in github.com/jkroepke/openvpn-auth-oauth2
Quick fix
GO-2026-4963 — github.com/jkroepke/openvpn-auth-oauth2: upgrade to the fixed version with the command below.
go get github.com/jkroepke/openvpn-auth-oauth2@v1.27.3Details
openvpn-auth-oauth2 returns FUNC_SUCCESS on client-deny, allowing unauthenticated VPN access in github.com/jkroepke/openvpn-auth-oauth2
Are you affected?
Enter the version of the package you're using.
Affected packages
Go/github.com/jkroepke/openvpn-auth-oauth2
Introduced in:
1.26.3Fixed in: 1.27.3Fix
go get github.com/jkroepke/openvpn-auth-oauth2@v1.27.3References
- https://github.com/jkroepke/openvpn-auth-oauth2/security/advisories/GHSA-246w-jgmq-88fg[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2026-41070[ADVISORY]
- https://github.com/jkroepke/openvpn-auth-oauth2/commit/36f69a6c67c1054da7cbfa04ced3f0555127c8f2[FIX]
- https://github.com/jkroepke/openvpn-auth-oauth2/pull/829[FIX]
- https://github.com/OpenVPN/openvpn/blob/master/include/openvpn-plugin.h.in[WEB]
- https://github.com/OpenVPN/openvpn3/blob/master/doc/webauth.md[WEB]
- https://github.com/jkroepke/openvpn-auth-oauth2/releases/tag/v1.27.3[WEB]