{"id":"CVE-2026-116729","aliases":["EUVD-2026-110477","GHSA-2f27-2cwc-rp26","UBUNTU-CVE-2026-116729"],"status":"published","title":"libfvde through 20260923 Heap Out-of-Bounds Read via libfvde_encrypted_metadata_read_type_0x001a","description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","severity":{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00132,"percentile":0.02855,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-10-26T21:52:31Z","modified":"2026-11-04T02:30:52Z","affected":[{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libfvde","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20160918-1build1","20170930-1","20180108-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libfvde","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20190104-1","20190104-1build1","20190104-1ubuntu1","20190104-1.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libfvde","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20190104-1.1build1","20190104-1.1build2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libfvde","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20190104-1.1build3","20190104-1.1build4","20190104-1.2","20190104-1.2build1","20190104-1.2build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libfvde","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240502-2build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libfvde","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240502-1build1","20240502-2","20240502-2build1"]}],"products":[{"vendor":"libyal","product":"libfvde"}],"references":[{"url":"https://github.com/libyal/libfvde/issues/70","tags":["issue-tracking","report"]},{"url":"https://github.com/libyal/libfvde","tags":["product","package","report"]},{"url":"https://github.com/libyal/libfvde/commit/c2676fe49d0da44d66e7d750e72c57d2670f0b8f","tags":["patch","fix","report"]},{"url":"https://github.com/libyal/libfvde/blob/20260923/libfvde/libfvde_encrypted_metadata.c#L2786-L2792","tags":["technical-description","article"]},{"url":"https://hackmd.io/@haindpwn/libfvde-encrypted-metadata-oob-read","tags":["third-party-advisory","exploit","advisory","report"]},{"url":"https://www.vulncheck.com/advisories/libfvde-through-20260923-heap-out-of-bounds-read-via-libfvde-encrypted-metadata-read-type-0x001a","tags":["third-party-advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116729","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2f27-2cwc-rp26"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116729.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-116729","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-116729","tags":["report"]},{"url":"https://github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116729.json","tags":["report"]},{"url":"https://github.com/libyal/libfvde/blob/20260923/libfvde/libfvde_encrypted_metadata.c#l2786-l2792","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/cve-2026-116729","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-116729","title":"libfvde through 20260923 Heap Out-of-Bounds Read via libfvde_encrypted_metadata_read_type_0x001a","description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","status":"published","published":"2026-10-26T21:52:31.564Z","modified":"2026-11-02T18:23:30.662Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T19:47:06.831391Z"}],"euvd":[{"id":"EUVD-2026-110477","description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","status":"published","published":"2026-10-26T21:52:31Z","modified":"2026-11-02T18:23:30Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-03T05:08:38.713005Z"}],"ghsa":[{"id":"GHSA-2f27-2cwc-rp26","title":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in...","description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","status":"published","published":"2026-10-27T00:32:48Z","modified":"2026-10-27T00:32:54Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:14:27.349207Z"}],"nvd":[{"id":"CVE-2026-116729","description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","status":"published","published":"2026-10-26T22:16:56.783Z","modified":"2026-11-02T19:17:57.32Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-03T00:02:36.126212Z"}],"osv":[{"id":"CVE-2026-116729","title":"libfvde through 20260923 Heap Out-of-Bounds Read via libfvde_encrypted_metadata_read_type_0x001a","description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","status":"published","published":"2026-10-26T21:52:31.564Z","modified":"2026-11-04T19:13:55.794792156Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-04T19:45:58.678944Z"},{"id":"UBUNTU-CVE-2026-116729","description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","status":"published","published":"2026-10-26T22:16:00Z","modified":"2026-10-28T20:17:46.110605581Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low"},{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low"},{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"},{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:56:00.081948Z"}]}}