CVE-2026-116729

Impact

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.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://github.com/libyal/libfvde
• https://github.com/libyal/libfvde/blob/20260923/libfvde/libfvde_encrypted_metadata.c#L2786-L2792
• https://github.com/libyal/libfvde/commit/c2676fe49d0da44d66e7d750e72c57d2670f0b8f
• https://github.com/libyal/libfvde/issues/70
• https://hackmd.io/@haindpwn/libfvde-encrypted-metadata-oob-read
• https://www.vulncheck.com/advisories/libfvde-through-20260923-heap-out-of-bounds-read-via-libfvde-encrypted-metadata-read-type-0x001a