Description
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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenVPN | Access Server | 2.7.2 – ≤ 3.1.0 | — |
Advisories 1
- WID-SEC-2026-2246 OpenVPN: Schwachstelle ermöglicht Manipulation von Daten BSI CERT-Bund (WID) · Jul 8, 2026
References
- https://openvpn.net/as-docs/as-3-2-release-notes.html release-notes