CVE-2026-92627

A heap-use-after-free vulnerability exists in H5T__conv_f_f() in src/H5Tconv.c in HDF5 before 1.14.2. When converting a compound datatype containing floating-point members during a dataset read, a temporary buffer allocated with calloc() is freed and subsequently read from within the same conversion routine. An attacker who can supply a crafted HDF5 file containing a specially constructed compound datatype can trigger the use-after-free when the file is parsed by an application that reads the affected dataset, such as h5dump. This can result in a crash and, depending on heap layout and allocator behavior, may be exploitable for further memory corruption up to remote code execution.

CVSS

No CVSS.

References

Link	Resource
https://pulsesecurity.co.nz/advisories/hdf5-memory-corruption

Configurations

No configuration.

History

16 Sep 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-16 16:17

Updated : 2026-09-18 19:34

NVD link : CVE-2026-92627

Mitre link : CVE-2026-92627

CVE.ORG link : CVE-2026-92627

JSON object : View

Products Affected

No product.

CWE

CWE-416

Use After Free

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