CVE-2026-116737
libphdi through 20260902 Heap Out-of-Bounds Read via Extent Data File Path
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-131 |
| Vendor | libyal |
| Product | libphdi |
| Published | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Affected Versions
libyal / libphdi
0 ≤ 20260902
References
github.com: https://github.com/libyal/libphdi/issues/6 github.com: https://github.com/libyal/libphdi github.com: https://github.com/libyal/libphdi/commit/61e3e1f6b4c5e15ce827b11858ba51f0dba254e3 github.com: https://github.com/libyal/libphdi/blob/20260902/libphdi/libphdi_data_files.c#L890-L907 hackmd.io: https://hackmd.io/@haindpwn/libphdi-extent-data-file-path-heap-oob-read vulncheck.com: https://www.vulncheck.com/advisories/libphdi-through-20260902-heap-out-of-bounds-read-via-extent-data-file-path
Credits
HaiND from the Post and Telecommunication Institute of Technology