Memory Leak Vulnerability in OpenVPN by OpenVPN Technologies
CVE-2026-13698

6MEDIUM

Key Information:

Vendor

Openvpn
Status
Openvpn
Vendor
CVE Published:
6 July 2026

What is CVE-2026-13698?

A vulnerability exists in OpenVPN versions 2.5.0 through 2.5.11, 2.6.0 through 2.6.20, and 2.7_alpha1 through 2.7.4, where memory leak can be exploited by remote attackers possessing a valid tls-crypt-v2 client key. This exploitation can result in a denial of service, affecting the application's stability and availability. It is crucial for users to update to patched versions to mitigate the risk associated with this memory leak.

Affected Version(s)

OpenVPN 2.5.0 <= 2.5.11

OpenVPN 2.6.0 <= 2.6.20

OpenVPN 2.7_alpha1 <= 2.7.4

References

https://community.openvpn.net/Security%20Announcements/CV...
vendor-advisory

CVSS V4

Score:
6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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