What is CVE-2026-19028?
CVE-2026-19028 is a vulnerability found in HDF5 library up to version 2.3.0. The `H5Z__filter_fletcher32` function computes a checksum length by subtracting a fixed size from the buffer length without checking if the buffer is at least that size, leading to a size_t underflow. This can be exploited to cause a denial of service (DoS); updating the library is recommended.
Azərbaycanca: CVE-2026-19028 HDF5 kitabxanasında (2.3.0 versiyasına qədər) aşkar edilmiş zəiflikdir. `H5Z__filter_fletcher32` funksiyasında bufer ölçüsünü yoxlamadan hesablama aparılır ki, bu da `size_t` tipli tam ədəd daşmasına (underflow) səbəb olur. Nəticədə təcavüzkar xidmət rəddi (DoS) hücumu həyata keçirə bilər; kitabxananı son versiyaya yeniləmək tövsiyə olunur.
Related CVEs
link basis: same weakness class CWE-190
FAQ2
Which library is affected by CVE-2026-19028?
CVE-2026-19028 affects the HDF5 library up to version 2.3.0.
What type of vulnerability is CVE-2026-19028?
CVE-2026-19028 is a size_t integer underflow vulnerability.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.