GO-2026-5417 CoreDNS' transfer stanza selection uses lexicographic compare (subzone ACL bypass) in github.com/coredns/coredns

CoreDNS' transfer stanza selection uses lexicographic compare subzone ACL bypass in github.com/coredns/coredns...

CoreDNS transfer plugin subzone ACL bypass via lexicographic zone comparison

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CVE-2026-33489 CoreDNS transfer plugin subzone ACL bypass via lexicographic zone comparison

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the transfer plugin can select the wrong ACL stanza when both a parent zone and a more-specific subzone are configured. The longestMatch function in plugin/transfer/transfer.go uses a lexicographic string comparison instead...