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HDF5 Heap Use-After-Free Vulnerability in h5dump (CVE-2026-34734)

A heap-use-after-free vulnerability (CVE-2026-34734) in HDF5 version 1.14.1-2 and earlier within the h5dump helper utility can be triggered by a malicious h5 file, leading to arbitrary code execution.

hdf5 heap-use-after-free cve-2026-34734 h5dump

2r 1t 1c 3w ago