{"id":"USN-8742-1","summary":"netty vulnerability","details":"It was discovered that Netty incorrectly validates the bailiwick of NS\nrecords. An attacker could possibly use this issue to facilitate DNS\ncache poisoning attacks.","modified":"2026-09-10T16:42:32.839292606Z","published":"2026-09-10T09:01:53Z","related":["UBUNTU-CVE-2026-47691"],"upstream":["CVE-2026-47691","UBUNTU-CVE-2026-47691"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8742-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-47691"}],"affected":[{"package":{"name":"netty","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/netty?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.1.48-9ubuntu0.2+esm2"}]}],"versions":["1:4.1.48-7","1:4.1.48-8","1:4.1.48-9","1:4.1.48-9ubuntu0.1~esm1","1:4.1.48-9ubuntu0.1~esm2","1:4.1.48-9ubuntu0.1","1:4.1.48-9ubuntu0.1+esm1","1:4.1.48-9ubuntu0.1+esm3","1:4.1.48-9ubuntu0.2","1:4.1.48-9ubuntu0.2+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1:4.1.48-9ubuntu0.2+esm2","binary_name":"libnetty-java"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:24.04:LTS","cves":[{"id":"CVE-2026-47691","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8742-1.json"}}],"schema_version":"1.9.0"}