{"id":"CVE-2026-105959","aliases":["BELL-CVE-2026-105959","DEBIAN-CVE-2026-105959","EUVD-2026-102846","GHSA-m5f2-676c-jfj7","UBUNTU-CVE-2026-105959","openSUSE-SU-2026:12222-1"],"status":"published","title":"Spice-server: spice: heap buffer overflow via glz dictionary max_encoders integer truncation","description":"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 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hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-105959","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2554008","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://gitlab.freedesktop.org/spice/spice/-/merge_requests/253","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105959"},{"url":"https://github.com/advisories/GHSA-m5f2-676c-jfj7"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-105959","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-105959","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-105959","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-105959","tags":["report"]},{"url":"https://gitlab.freedesktop.org/spice/spice/-/commit/a3b9feb121fa6b19dc55cca6ec546e35fe4c9573","tags":["report"]},{"url":"https://gitlab.freedesktop.org/spice/spice/-/commit/4807b923d09e656d3f414ccde16d83189ba79ac9","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-105958","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-105959","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-105959","title":"Spice-server: 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