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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-26199

Buffer underflow in `H5Iget_name `/`H5G_get_name` if size is zero

Description

HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If `H5Iget_name` is invoked on a group id with `0` for the size parameter, it will underflow when trying to place a null terminator in the buffer. This can occur if `H5Iget_name` is invoked in a way where `size` can be forced to zero, and there is important data before the `name` buffer.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

HDFGroup hdf5

  • <= 1.14.6affected

References