AZL-85721
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-85721.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-85721
- Upstream
- Published
- 2026-05-05T20:16:36Z
- Modified
- 2026-08-30T05:26:50Z
- Summary
- CVE-2026-33489 affecting package coredns for versions less than 1.11.4-17
- Details
-
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 of an actual longest-suffix match to select the winning zone. As a result, a permissive parent-zone transfer rule can override a restrictive subzone rule depending on zone name ordering (e.g., "example.org." > "a.example.org." lexicographically). This allows an unauthorized remote client to perform AXFR/IXFR for the subzone and retrieve its full zone contents. This issue has been fixed in version 1.14.3.
- References