{"id":"ALPINE-CVE-2026-27853","details":"An attacker might be able to trigger an out-of-bounds write by sending crafted DNS responses to a DNSdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code. In some cases the rewritten packet might become larger than the initial response and even exceed 65535 bytes, potentially leading to a crash resulting in denial of service.","modified":"2026-11-03T06:32:53.740512189Z","published":"2026-03-31T12:16:27.917Z","upstream":["CVE-2026-27853"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2026-27853"}],"affected":[{"package":{"name":"dnsdist","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/dnsdist?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"2.0.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27853.json"}},{"package":{"name":"dnsdist","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/dnsdist?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.9.0"},{"fixed":"2.0.4-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27853.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}