{"id":"UBUNTU-CVE-2026-116731","details":"Furnace through 0.6.8.3 contains an out-of-bounds write vulnerability in DivEngine::loadFTM() that allows attackers to corrupt heap memory via an unchecked subsong index in the GROOVES block. Attackers can craft a FamiTracker module with a subsong count of 2 or more to write a groove pattern past the subsong vector, crashing Furnace when opened.","modified":"2026-10-28T20:17:46.196960875Z","published":"2026-10-26T22:16:00Z","upstream":["CVE-2026-116731"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-116731"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-116731"},{"type":"REPORT","url":"https://github.com/tildearrow/furnace"},{"type":"REPORT","url":"https://github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116731.json"},{"type":"REPORT","url":"https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileops/ftm.cpp#l1597-l1605"},{"type":"REPORT","url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693"},{"type":"REPORT","url":"https://github.com/tildearrow/furnace/issues/2966"},{"type":"REPORT","url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob"},{"type":"REPORT","url":"https://nvd.nist.gov/vuln/detail/cve-2026-116731"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-import"}],"affected":[{"package":{"name":"furnace","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/furnace?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.8.3+git20250912+ds-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.6.8.3+git20250912+ds-2","binary_name":"furnace"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116731.json"}},{"package":{"name":"furnace","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/furnace?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.8.1+git20250403+ds-1","0.6.8.3+git20250912+ds-1","0.6.8.3+git20250912+ds-2"],"ecosystem_specific":{"binaries":[{"binary_name":"furnace","binary_version":"0.6.8.3+git20250912+ds-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116731.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}