High severity7.8NVD Advisory· Published Apr 9, 2026· Updated Apr 14, 2026
CVE-2026-34734
CVE-2026-34734
Description
HDF5 is software for managing data. In 1.14.1-2 and earlier, a heap-use-after-free was found in the h5dump helper utility. An attacker who can supply a malicious h5 file can trigger a heap use-after-free. The freed object is referenced in a memmove call from H5T__conv_struct. The original object was allocated by H5D__typeinfo_init_phase3 and freed by H5D__typeinfo_term.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/HDFGroup/hdf5/security/advisories/GHSA-w7v2-9cmr-pwwjnvdExploitVendor Advisory
News mentions
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