CVE-2026-13698

NameCVE-2026-13698
DescriptionA memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-4666-1, DSA-6376-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openvpn (PTS)bullseye2.5.1-3vulnerable
bullseye (security)2.5.1-3+deb11u4vulnerable
bookworm, bookworm (security)2.6.14-0+deb12u2fixed
trixie (security), trixie2.6.14-1+deb13u3fixed
forky, sid2.7.5-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openvpnsourcebookworm2.6.14-0+deb12u2DLA-4666-1
openvpnsourcetrixie2.6.14-1+deb13u3DSA-6376-1
openvpnsource(unstable)2.7.5-1

Notes

Fixed by: https://github.com/OpenVPN/openvpn/commit/b005e4709ce1afbee7c571788cffd915280d646e (v2.7.5)

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