{"id":"AZL-113200","summary":"CVE-2026-123594 affecting package netavark 1.10.3-9","details":"Hickory DNS hickory-proto through 0.26.0-alpha.1 and hickory-net 0.26.0-beta.1 before 0.26.2 contain an NSEC validation flaw that returns a secure proof for NXDOMAIN responses when the covering NSEC's Next Domain Name is a strict descendant of the query name, which actually proves the name exists as an empty non-terminal. On-path attackers can flip the unsigned rcode of a genuine signed NODATA response from NOERROR to NXDOMAIN, causing validators to accept forged nonexistence of the name.","modified":"2026-11-14T05:30:17Z","published":"2026-11-08T02:16:53Z","upstream":["CVE-2026-123594"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123594"}],"affected":[{"package":{"name":"netavark","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/netavark"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.10.3-9"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-113200.json"}}],"schema_version":"1.9.2"}