CVE-2026-19024

NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fill value message has the "defined" flag set together with a negative size field, which is not normalized to the library's "undefined" sentinel and reaches H5T_path_find with a NULL datatype.

CVSS

No CVSS.

References

Link	Resource
https://github.com/HDFGroup/hdf5/issues/6487
https://github.com/HDFGroup/hdf5/issues/6487

Configurations

No configuration.

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Desreferencia de puntero NULL en H5Pget_fill_value en HDF5 anterior a 2.1.1 permite a los atacantes causar una denegación de servicio a través de un conjunto de datos cuyo mensaje de valor de relleno de la versión 1 o 2 tiene la bandera ’defined’ establecida junto con un campo de tamaño negativo, que no se normaliza al centinela ’undefined’ de la biblioteca y llega a H5T_path_find con un tipo de dato NULL.

Information

Published : 2026-08-05 23:16

Updated : 2026-10-23 21:10

NVD link : CVE-2026-19024

Mitre link : CVE-2026-19024

CVE.ORG link : CVE-2026-19024

JSON object : View

Products Affected

No product.

CWE

CWE-476

NULL Pointer Dereference

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