{"id":"AZL-103347","summary":"CVE-2026-81563 affecting package bind 9.20.26-1","details":"A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.","modified":"2026-09-24T05:33:01Z","published":"2026-09-16T14:17:10Z","upstream":["CVE-2026-81563"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81563"}],"affected":[{"package":{"name":"bind","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/bind"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"9.20.26-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-103347.json"}}],"schema_version":"1.9.0"}