CVE-2026-92543
highpriority · track · 0OT risk · elevatedEPSS 0.001 · 0 %ileDEEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3808docker: Schwachstelle ermöglicht Manipulation von Daten und Umgehen von SicherheitsvorkehrungenDeutsch2026-10-07csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in docker ausnutzen, um Daten zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.
sources
Which sources assert this record, and when.
references (1) nvd
External citations — patches, advisories, analysis.
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