Vulnerability Description
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.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-19024?
CVE-2026-19024 is a documented vulnerability. 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 togeth...
How severe is CVE-2026-19024?
CVSS scoring is not yet available for CVE-2026-19024. Check NVD for updates.
Is there a patch for CVE-2026-19024?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.