CVE-2025-3110

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

Score

CVSS 3.1 7.5 High

Status

Analyzed - security@openvpn.net

Published

2026-07-08

Last modified

2026-07-08

Weaknesses

CWE-444

Affected products

• Access Server (Openvpn)
• Openvpn Access Server (Openvpn)

References

• https://openvpn.net/as-docs/as-3-2-release-notes.html