CVE-2026-34734
CVE-2026-34734
7.8
HighPublished:
Last updated:
Source:security-advisories@github.com
Analyzed
Weakness (CWE)
CVSS Vector
v3.1- Attack Vector
- Local
- Attack Complexity
- Low
- Privileges Required
- None
- User Interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
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.
References
security-advisories@github.com
https://github.com/HDFGroup/hdf5/security/advisories/GHSA-w7v2-9cmr-pwwj134c704f-9b21-4f2e-91b3-4a467353bcc0
https://github.com/HDFGroup/hdf5/security/advisories/GHSA-w7v2-9cmr-pwwj