{"id":"ALPINE-CVE-2026-4892","details":"A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet.","modified":"2026-08-27T22:17:57.340248294Z","published":"2026-05-11T18:16:41.483Z","upstream":["CVE-2026-4892"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2026-4892"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/dnsmasq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.91-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-4892.json"}},{"package":{"name":"dnsmasq","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/dnsmasq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.91-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-4892.json"}},{"package":{"name":"dnsmasq","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/dnsmasq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.92_p2-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-4892.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}