CVE-2026-92542

Blind VXLAN injection into encrypted overlay networks from cluster peer

CVE-2026-92542 is fixed in 3 products on 1 platform, first by ALAS2023-2026-3266, released November 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

n/a

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0007

0th percentile

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

Where it's fixed

Product	Fixed in	Fix	Released
Linux
docker · amzn 2023	25.0.18-1.amzn2023.0.1	ALAS2023-2026-3266	Nov 7, 2026
docker-debuginfo · amzn 2023	25.0.18-1.amzn2023.0.1	ALAS2023-2026-3266	Nov 7, 2026
docker-debugsource · amzn 2023	25.0.18-1.amzn2023.0.1	ALAS2023-2026-3266	Nov 7, 2026

Details

Published
October 11, 2026
Weakness
Authentication Bypass by Spoofing
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-92542

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