CVE-2026-92542

NameCVE-2026-92542
DescriptionThe firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
docker.io (PTS)bookworm20.10.24+dfsg1-1+deb12u1vulnerable
trixie (security), trixie26.1.5+dfsg1-9+deb13u1vulnerable
forky, sid28.5.2+dfsg4-5vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
docker.iosource(unstable)(unfixed)

Notes

https://github.com/moby/moby/security/advisories/GHSA-6m9p-4h64-m6vh

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