{"id":"CVE-2026-105959","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-105959","summary":"A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated…","details":"A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted max_encoders value in migration data.","published":"2026-10-16T12:16:31.733","modified":"2026-10-16T12:16:31.733","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-105959"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2554008"},{"type":"WEB","url":"https://gitlab.freedesktop.org/spice/spice/-/merge_requests/253"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-16T12:16:31.733"}}