CVE-2026-19023 — HDF5 h5dump Untrusted Pointer Dereference in Binary Output of Variable-Length String Datasets
Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.3.0 allows attackers to cause a denial of service via a variable-length strin…
Published: 2026-08-05 · CVSS: 6.8 · CVSS 4.0
Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.3.0 allows attackers to cause a denial of service via a variable-length string dataset with more than one element dumped in binary mode, which corrupts the per-element stride calculation and causes subsequent elements to be read from a misaligned offset and dereferenced as a pointer.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7