HIGHCVE-2026-34734Published Modified CNA GitHub_M
CVE-2026-34734: HDF5: H5T__conv_struct Use After Free
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.
Metrics
- CVSS v3.1
- 7.8
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
Affected packages
- HDFGroup / hdf5<= 1.14.1-2
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H