The 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
History

Fri, 09 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Docker
Docker docker Engine
Docker docker Engine Overlay Network Driver
Moby
Moby moby Overlay Network Driver
Vendors & Products Docker
Docker docker Engine
Docker docker Engine Overlay Network Driver
Moby
Moby moby Overlay Network Driver

Thu, 08 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}

threat_severity

Important


Thu, 08 Oct 2026 00:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-284

Wed, 07 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-290
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-284

Wed, 07 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description The 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
Title Blind VXLAN injection into encrypted overlay networks from cluster peer
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Docker

Published: 2026-10-07T16:42:20.998Z

Updated: 2026-10-07T20:30:49.884Z

Reserved: 2026-09-16T13:00:30.172Z

Link: CVE-2026-92542

cve-icon Vulnrichment

Updated: 2026-10-07T20:30:44.871Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-07T17:17:02.580

Modified: 2026-10-08T20:46:35.260

Link: CVE-2026-92542

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-07T16:42:20Z

Links: CVE-2026-92542 - Bugzilla