{"id":"CVE-2026-92543","published":"2026-10-07T17:17:02.727","lastModified":"2026-10-08T20:46:35.260","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-295","CWE-319"],"vendors":[],"products":[],"references":[{"url":"https://github.com/moby/moby/security/advisories/GHSA-7cfq-22r6-qp73","tags":[]}],"exploitRefs":[{"url":"https://github.com/moby/moby/security/advisories/GHSA-7cfq-22r6-qp73","tags":[]}],"hasPoc":true,"ai":null}