PT-2026-39400 · Julia · Hdf5 Jll

Published 2026-04-29 · Updated 2026-04-29

OSV

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Fix

Related Identifiers

JLSEC-2026-354

Affected Products

Hdf5 Jll

References · 2

• https://osv.dev/vulnerability/JLSEC-2026-354 · Vendor Advisory
• https://github.com/HDFGroup/hdf5/security/advisories/GHSA-w7v2-9cmr-pwwj · Note