CVE-2026-19024 — HDF5 H5Pget_fill_value NULL Pointer Dereference via Malformed Fill Value Message
NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fill value message has the "d…
Published: 2026-08-05 · CVSS: 8.2 · CVSS 4.0
NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fill value message has the "defined" flag set together with a negative size field, which is not normalized to the library's "undefined" sentinel and reaches H5T_path_find with a NULL datatype.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7