CVE-2026-19024
NoneCVSS
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EPSS
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Published
Aug 5, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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