CVE-2026-92543 Affecting docker.io package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.09% (1st percentile)

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  • Snyk IDSNYK-ECHOLATEST-DOCKERIO-20571259
  • published8 Oct 2026
  • disclosed7 Oct 2026

Introduced: 7 Oct 2026

NewCVE-2026-92543  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest docker.io.

NVD Description

Note: Versions mentioned in the description apply only to the upstream docker.io package and not the docker.io package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Docker Engine classifies a registry hostname as insecure using an any-match DNS check. loadInsecureRegistries() injects 127.0.0.0/8 and ::1/128 as insecure CIDRs by default. isCIDRMatch resolves all of the hostname's addresses and returns true if a single address is in the insecure CIDR list. Because the transport re-dials the hostname rather than the CIDR-matching address, a DNS answer set of one loopback IP plus a non-loopback attacker IP disables certificate verification and enables HTTP fallback for the registry connection.

CVSS Base Scores

version 3.1