CVE-2026-116737

Description

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.

References

• https://github.com/libyal/libphdi
• https://github.com/libyal/libphdi/blob/20260902/libphdi/libphdi_data_files.c#L890-L907
• https://github.com/libyal/libphdi/commit/61e3e1f6b4c5e15ce827b11858ba51f0dba254e3
• https://github.com/libyal/libphdi/issues/6
• https://hackmd.io/@haindpwn/libphdi-extent-data-file-path-heap-oob-read