CVE-2026-19026

H5Z__filter_nbit in H5Znbit.c in HDF5 through 2.3.0 dereferences cd_values[0] through cd_values[4] without validating that cd_values is non-NULL or that cd_nelmts is at least 5, the fixed size of the filter's header. This allows attackers to cause a denial of service via a crafted HDF5 file that stores the N-Bit filter pipeline message with zero client-data values, opened and read via H5Dread, e.g. by the h5ls or h5repack tools.

CVSS

No CVSS.

References

Link	Resource
https://github.com/HDFGroup/hdf5/issues/6489
https://github.com/HDFGroup/hdf5/issues/6492
https://github.com/HDFGroup/hdf5/pull/6497
https://github.com/HDFGroup/hdf5/issues/6489

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-05 23:16

Updated : 2026-08-31 19:23

NVD link : CVE-2026-19026

Mitre link : CVE-2026-19026

CVE.ORG link : CVE-2026-19026

JSON object : View

Products Affected

No product.

CWE

CWE-476

NULL Pointer Dereference

CWE-1284

Improper Validation of Specified Quantity in Input

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