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...

CVE-2026-33489

A flaw was found in CoreDNS. An unauthorized remote client can exploit a vulnerability in the transfer plugin's Access Control List ACL stanza selection. This occurs when both a parent zone and a more-specific subzone are configured, and the longestMatch function incorrectly uses a lexicographic...

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...

EUVD-2026-27450

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...

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...

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...

CoreDNS' transfer stanza selection uses lexicographic compare (subzone ACL bypass)

Summary CoreDNS' transfer plugin can select the wrong ACL stanza when both a parent zone and a more-specific subzone are configured. A permissive parent-zone transfer rule can override a restrictive subzone rule name-dependent, allowing an unauthorized client to perform AXFR/IXFR for the subzone...

GHSA-H8MM-C463-WJQ3 CoreDNS' transfer stanza selection uses lexicographic compare (subzone ACL bypass)

Summary CoreDNS' transfer plugin can select the wrong ACL stanza when both a parent zone and a more-specific subzone are configured. A permissive parent-zone transfer rule can override a restrictive subzone rule name-dependent, allowing an unauthorized client to perform AXFR/IXFR for the subzone...

PT-2026-35877

Name of the Vulnerable Software and Affected Versions CoreDNS versions prior to 1.14.3 Description The transfer plugin in CoreDNS can select an incorrect Access Control List ACL stanza when both a parent zone and a more-specific subzone are configured. This occurs because the longestMatch functio...