p PatchFirst

CVE-2026-92542

CVE-2026-92542 · Blind VXLAN injection into encrypted overlay networks from cluster peer

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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

CVSS 6.9 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: system · containers

Affected products and versions

  • docker engine

    Versions
    • ≥ 0, < 25.0.19: Affected (semver)
    • ≥ 26.0.0, < 29.8.2: Affected (semver)

    Update to 25.0.19; Update to 29.8.2

  • docker engine overlay network driver

    Versions
    • ≥ 0, < v25.0.19: Affected (semver)
    • ≥ v26.0.0: Affected (semver)

    Update to v25.0.19

  • moby overlay network driver

    Versions
    • ≥ v2.0.0-beta.0, < v2.0.0-beta.25: Affected (semver)

    Update to v2.0.0-beta.25

  • docker.io Debian:12

    Versions
    • 20.10.24+dfsg1-1
    • 20.10.24+dfsg1-1+deb12u1
    • 20.10.25+dfsg1-1
    • 20.10.25+dfsg1-2
    • 20.10.25+dfsg1-3
    • 20.10.25+dfsg1-4
    • 26.1.4+dfsg1-1
    • 26.1.4+dfsg1-2
    • 26.1.4+dfsg1-3
    • 26.1.4+dfsg1-4
    • 26.1.4+dfsg1-5
    • 26.1.4+dfsg1-6
    • 26.1.4+dfsg1-7
    • 26.1.4+dfsg1-8
    • 26.1.4+dfsg1-9
    • 26.1.4+dfsg2-1
    • 26.1.4+dfsg3-1
    • 26.1.5+dfsg1-1
    • 26.1.5+dfsg1-10
    • 26.1.5+dfsg1-2
    • 26.1.5+dfsg1-3
    • 26.1.5+dfsg1-4
    • 26.1.5+dfsg1-5
    • 26.1.5+dfsg1-6
    • 26.1.5+dfsg1-7
    • 26.1.5+dfsg1-8
    • 26.1.5+dfsg1-9
    • 27.5.1+dfsg1-1
    • 27.5.1+dfsg1-2
    • 27.5.1+dfsg2-1
    • 27.5.1+dfsg3-1
    • 27.5.1+dfsg3-2
    • 27.5.1+dfsg3-3
    • 27.5.1+dfsg3-4
    • 27.5.1+dfsg3-5
    • 27.5.1+dfsg3-6
    • 27.5.1+dfsg4-1
    • 27.5.1+dfsg4-2
    • 28.5.2+dfsg1-1
    • 28.5.2+dfsg2-1
    • 28.5.2+dfsg3-1
    • 28.5.2+dfsg3-2
    • 28.5.2+dfsg4-1
    • 28.5.2+dfsg4-2
    • 28.5.2+dfsg4-3
    • 28.5.2+dfsg4-4
    • 28.5.2+dfsg4-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Debian:13

    Versions
    • 26.1.5+dfsg1-10
    • 26.1.5+dfsg1-9
    • 26.1.5+dfsg1-9+deb13u1
    • 27.5.1+dfsg1-1
    • 27.5.1+dfsg1-2
    • 27.5.1+dfsg2-1
    • 27.5.1+dfsg3-1
    • 27.5.1+dfsg3-2
    • 27.5.1+dfsg3-3
    • 27.5.1+dfsg3-4
    • 27.5.1+dfsg3-5
    • 27.5.1+dfsg3-6
    • 27.5.1+dfsg4-1
    • 27.5.1+dfsg4-2
    • 28.5.2+dfsg1-1
    • 28.5.2+dfsg2-1
    • 28.5.2+dfsg3-1
    • 28.5.2+dfsg3-2
    • 28.5.2+dfsg4-1
    • 28.5.2+dfsg4-2
    • 28.5.2+dfsg4-3
    • 28.5.2+dfsg4-4
    • 28.5.2+dfsg4-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Debian:14

    Versions
    • 26.1.5+dfsg1-10
    • 26.1.5+dfsg1-9
    • 27.5.1+dfsg1-1
    • 27.5.1+dfsg1-2
    • 27.5.1+dfsg2-1
    • 27.5.1+dfsg3-1
    • 27.5.1+dfsg3-2
    • 27.5.1+dfsg3-3
    • 27.5.1+dfsg3-4
    • 27.5.1+dfsg3-5
    • 27.5.1+dfsg3-6
    • 27.5.1+dfsg4-1
    • 27.5.1+dfsg4-2
    • 28.5.2+dfsg1-1
    • 28.5.2+dfsg2-1
    • 28.5.2+dfsg3-1
    • 28.5.2+dfsg3-2
    • 28.5.2+dfsg4-1
    • 28.5.2+dfsg4-2
    • 28.5.2+dfsg4-3
    • 28.5.2+dfsg4-4
    • 28.5.2+dfsg4-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Ubuntu:Pro:16.04:LTS

    Versions
    • 1.6.2~dfsg1-1ubuntu4
    • 1.10.2-0ubuntu3
    • 1.10.2-0ubuntu4
    • 1.10.3-0ubuntu1
    • 1.10.3-0ubuntu4
    • 1.10.3-0ubuntu5
    • 1.10.3-0ubuntu6
    • 1.11.2-0ubuntu5~16.04
    • 1.12.1-0ubuntu13~16.04.1
    • 1.12.3-0ubuntu4~16.04.2
    • 1.12.6-0ubuntu1~16.04.1
    • 1.13.1-0ubuntu1~16.04.2
    • 17.03.2-0ubuntu2~16.04.1
    • 18.06.1-0ubuntu1~16.04.2
    • 18.06.1-0ubuntu1.2~16.04.1
    • 18.09.2-0ubuntu1~16.04.1
    • 18.09.5-0ubuntu1~16.04.2
    • 18.09.7-0ubuntu1~16.04.1
    • 18.09.7-0ubuntu1~16.04.4
    • 18.09.7-0ubuntu1~16.04.5
    • 18.09.7-0ubuntu1~16.04.6
    • 18.09.7-0ubuntu1~16.04.7
    • 18.09.7-0ubuntu1~16.04.9+esm1
    • 18.09.7-0ubuntu1~16.04.9+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Ubuntu:Pro:18.04:LTS

    Versions
    • 1.13.1-0ubuntu6
    • 17.03.2-0ubuntu1
    • 17.03.2-0ubuntu3
    • 17.03.2-0ubuntu5
    • 17.12.1-0ubuntu1
    • 18.06.1-0ubuntu1~18.04.1
    • 18.06.1-0ubuntu1.2~18.04.1
    • 18.09.2-0ubuntu1~18.04.1
    • 18.09.5-0ubuntu1~18.04.2
    • 18.09.7-0ubuntu1~18.04.1
    • 18.09.7-0ubuntu1~18.04.3
    • 18.09.7-0ubuntu1~18.04.4
    • 19.03.6-0ubuntu1~18.04.1
    • 19.03.6-0ubuntu1~18.04.2
    • 19.03.6-0ubuntu1~18.04.3
    • 20.10.2-0ubuntu1~18.04.2
    • 20.10.2-0ubuntu1~18.04.3
    • 20.10.7-0ubuntu1~18.04.1
    • 20.10.7-0ubuntu1~18.04.2
    • 20.10.7-0ubuntu5~18.04.2
    • 20.10.7-0ubuntu5~18.04.3
    • 20.10.12-0ubuntu2~18.04.1
    • 20.10.21-0ubuntu1~18.04.2
    • 20.10.21-0ubuntu1~18.04.3
    • 20.10.21-0ubuntu1~18.04.3+esm1
    • 20.10.21-0ubuntu1~18.04.3+esm2
    • 20.10.21-0ubuntu1~18.04.3+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Ubuntu:Pro:20.04:LTS

    Versions
    • 19.03.2-0ubuntu1
    • 19.03.6-0ubuntu1
    • 19.03.8-0ubuntu1
    • 19.03.8-0ubuntu1.20.04
    • 19.03.8-0ubuntu1.20.04.1
    • 19.03.8-0ubuntu1.20.04.2
    • 20.10.2-0ubuntu1~20.04.2
    • 20.10.2-0ubuntu1~20.04.3
    • 20.10.7-0ubuntu1~20.04.1
    • 20.10.7-0ubuntu1~20.04.2
    • 20.10.7-0ubuntu5~20.04.1
    • 20.10.7-0ubuntu5~20.04.2
    • 20.10.12-0ubuntu2~20.04.1
    • 20.10.21-0ubuntu1~20.04.1
    • 20.10.21-0ubuntu1~20.04.2
    • 20.10.21-0ubuntu1~20.04.4
    • 20.10.21-0ubuntu1~20.04.5
    • 20.10.21-0ubuntu1~20.04.6
    • 20.10.21-0ubuntu1~20.04.6+esm1
    • 20.10.21-0ubuntu1~20.04.6+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io-app Ubuntu:Pro:20.04:LTS

    Versions
    • 20.10.25-0ubuntu1~20.04.1
    • 20.10.25-0ubuntu1~20.04.2
    • 24.0.5-0ubuntu1~20.04.1
    • 24.0.7-0ubuntu2~20.04.1
    • 26.1.3-0ubuntu1~20.04.1
    • 26.1.3-0ubuntu1~20.04.1+esm1
    • 26.1.3-0ubuntu1~20.04.1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Ubuntu:Pro:22.04:LTS

    Versions
    • 20.10.7-0ubuntu5
    • 20.10.7-0ubuntu7
    • 20.10.12-0ubuntu1
    • 20.10.12-0ubuntu2
    • 20.10.12-0ubuntu3
    • 20.10.12-0ubuntu3+gke1.24.1
    • 20.10.12-0ubuntu4
    • 20.10.21-0ubuntu1~22.04.2
    • 20.10.21-0ubuntu1~22.04.3
    • 20.10.21-0ubuntu1~22.04.5
    • 20.10.21-0ubuntu1~22.04.6
    • 20.10.21-0ubuntu1~22.04.7
    • 20.10.21-0ubuntu1~22.04.7+esm1
    • 20.10.21-0ubuntu1~22.04.7+esm2
    • 20.10.21-0ubuntu1~22.04.8
    • 20.10.21-0ubuntu1~22.04.8+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io-app Ubuntu:Pro:22.04:LTS

    Versions
    • 20.10.25-0ubuntu1~22.04.1
    • 20.10.25-0ubuntu1~22.04.2
    • 24.0.5-0ubuntu1~22.04.1
    • 24.0.7-0ubuntu2~22.04.1
    • 26.1.3-0ubuntu1~22.04.1
    • 26.1.3-0ubuntu1~22.04.1+esm1
    • 27.5.1-0ubuntu3~22.04.1
    • 27.5.1-0ubuntu3~22.04.2
    • 28.2.2-0ubuntu1~22.04.1
    • 29.1.3-0ubuntu3~22.04.1
    • 29.1.3-0ubuntu3~22.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Ubuntu:Pro:24.04:LTS

    Versions
    • 20.10.24+dfsg1-1ubuntu2
    • 20.10.25+dfsg1-2ubuntu1
    • 20.10.25+dfsg1-2ubuntu1+esm1
    • 20.10.25+dfsg1-2ubuntu1+esm2
    • 20.10.25+dfsg1-2ubuntu1.24.04.1
    • 20.10.25+dfsg1-2ubuntu1.24.04.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io-app Ubuntu:Pro:24.04:LTS

    Versions
    • 24.0.5-0ubuntu1
    • 24.0.7-0ubuntu1
    • 24.0.7-0ubuntu2
    • 24.0.7-0ubuntu3
    • 24.0.7-0ubuntu4
    • 24.0.7-0ubuntu4.1
    • 26.1.3-0ubuntu1~24.04.1
    • 26.1.3-0ubuntu1~24.04.1+esm1
    • 27.5.1-0ubuntu3~24.04.1
    • 27.5.1-0ubuntu3~24.04.2
    • 28.2.2-0ubuntu1~24.04.1
    • 29.1.3-0ubuntu3~24.04.1
    • 29.1.3-0ubuntu3~24.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Ubuntu:26.10

    Versions
    • 27.5.1+dfsg4-2ubuntu1
    • 28.5.2+dfsg4-5ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io-app Ubuntu:26.10

    Versions
    • 29.1.3-0ubuntu4
    • 29.1.3-0ubuntu5
    • 29.1.3-0ubuntu6
    • 29.7.2-0ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io Ubuntu:26.04:LTS

    Versions
    • 26.1.5+dfsg1-9ubuntu1
    • 27.5.1+dfsg4-1ubuntu1
    • 27.5.1+dfsg4-2ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • docker.io-app Ubuntu:26.04:LTS

    Versions
    • 28.2.2-0ubuntu1
    • 29.1.2-0ubuntu1
    • 29.1.3-0ubuntu1
    • 29.1.3-0ubuntu2
    • 29.1.3-0ubuntu3
    • 29.1.3-0ubuntu4
    • 29.1.3-0ubuntu4.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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