CVE-2025-3110: Openvpn Access Server

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

OpenVPN Access Server 2.7.2 through 3.1.0 accepts bare line-feed sequences inside HTTP header values, allowing remote attackers to perform HTTP request smuggling when deployed behind a reverse proxy

Affected products

• Openvpn Openvpn Access Server: from 2.7.2, up to and including 3.1.0

Published 2026-07-08. Last modified 2026-09-29.