{"id":"UBUNTU-CVE-2026-116737","details":"libphdi through 20260902 contains a heap out-of-bounds read vulnerability in libphdi_data_files_get_extent_data_file_path that uses the directory prefix length instead of the basename length. Attackers can supply a crafted Parallels disk image descriptor with a long directory prefix and short basename to crash the process or expose adjacent heap memory.","modified":"2026-10-28T20:17:46.206487313Z","published":"2026-10-26T22:16:00Z","upstream":["CVE-2026-116737"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-116737"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-116737"},{"type":"REPORT","url":"https://github.com/libyal/libphdi"},{"type":"REPORT","url":"https://github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116737.json"},{"type":"REPORT","url":"https://github.com/libyal/libphdi/blob/20260902/libphdi/libphdi_data_files.c#l890-l907"},{"type":"REPORT","url":"https://github.com/libyal/libphdi/commit/61e3e1f6b4c5e15ce827b11858ba51f0dba254e3"},{"type":"REPORT","url":"https://github.com/libyal/libphdi/issues/6"},{"type":"REPORT","url":"https://hackmd.io/@haindpwn/libphdi-extent-data-file-path-heap-oob-read"},{"type":"REPORT","url":"https://nvd.nist.gov/vuln/detail/cve-2026-116737"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/libphdi-through-20260902-heap-out-of-bounds-read-via-extent-data-file-path"}],"affected":[{"package":{"name":"libphdi","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libphdi?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0~20240508-2build2"],"ecosystem_specific":{"binaries":[{"binary_name":"libphdi-utils","binary_version":"0~20240508-2build2"},{"binary_name":"libphdi1","binary_version":"0~20240508-2build2"},{"binary_name":"python3-phdi","binary_version":"0~20240508-2build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116737.json"}},{"package":{"name":"libphdi","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libphdi?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0~20240508-2build1","0~20240508-2build2"],"ecosystem_specific":{"binaries":[{"binary_name":"libphdi-utils","binary_version":"0~20240508-2build2"},{"binary_version":"0~20240508-2build2","binary_name":"libphdi1"},{"binary_name":"python3-phdi","binary_version":"0~20240508-2build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116737.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:L/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/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:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}