{"id":"CVE-2026-116729","title":"libfvde through 20260923 Heap Out-of-Bounds Read via libfvde_encrypted_metadata_read_type_0x001a","summary":"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 n…","severity":"low","cvss":3.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-125"],"vendor":"libyal","product":"libfvde","affected":["libfvde <= 20260923"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T21:52:31.564Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116729","references":[{"url":"https://github.com/libyal/libfvde/issues/70","label":"GitHub Issue #70"},{"url":"https://github.com/libyal/libfvde"},{"url":"https://github.com/libyal/libfvde/commit/c2676fe49d0da44d66e7d750e72c57d2670f0b8f"},{"url":"https://github.com/libyal/libfvde/blob/20260923/libfvde/libfvde_encrypted_metadata.c#L2786-L2792"},{"url":"https://hackmd.io/@haindpwn/libfvde-encrypted-metadata-oob-read"},{"url":"https://www.vulncheck.com/advisories/libfvde-through-20260923-heap-out-of-bounds-read-via-libfvde-encrypted-metadata-read-type-0x001a","label":"VulnCheck Advisory: libfvde through 20260923 Heap Out-of-Bounds Read via libfvde_encrypted_metadata_read_type_0x001a"}],"tags":["cve.org"],"epss":0.00132,"epssPercentile":0.02773,"ingestedAt":"2026-10-27T16:11:59.123Z","slug":"CVE-2026-116729","body":"## Overview\n\nlibfvde 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.\n\n## Affected\n\n- `libfvde <= 20260923`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":18,"depthScoreParts":{"impact":18.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}