CVE-2026-17573 Double Free in H5D__chunk_copy() in HDF5 via a Crafted Chunk-Index Size Field

A double free vulnerability was discovered in the HDF5 library. Processing a crafted HDF5 file containing an oversized chunk size field via h5repack may cause the application to abort due to a double free...

CVE-2026-17573

The CVE-2026-17573 entry concerns the HDF5 library, specifically a vulnerability in H5D__chunk_copy() triggered by processing a crafted HDF5 file with an oversized chunk-size field. The issue can cause an application abort due to a double-free condition when using h5repack. Affected component: HD...