CVE-2026-13117

Description

An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to trigger a use-after-free during TLS session promotion, potentially leading to a denial of service or memory leakage

References

• https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
• https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
• https://community.openvpn.net/Security%20Announcements/CVE-2026-13117