hdf5: HDF5 library: Denial of Service via crafted HDF5 file processing

A flaw was found in the HDF5 library. A local user could exploit a double free vulnerability by processing a specially crafted HDF5 file with an oversized chunk size field using the h5repack tool. This could cause the application to unexpectedly terminate, leading to a denial of service...

JLSEC-2026-1385

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-2026-19027: Out-of-bounds Read

The H5Znbitdecompressonebyte, H5Znbitdecompressonenooptype, and H5Znbitdecompressoneatomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer's actual size. This allows attackers to cause an out-of-bounds heap...

CVE-2026-19026

H5Zfilternbit in H5Znbit.c in HDF5 through 2.3.0 dereferences cdvalues0 through cdvalues4 without validating that cdvalues is non-NULL or that cdnelmts 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...

CVE-2026-19025

H5Olayoutdecode in H5Olayout.c in HDF5 through 2.3.0 does not validate that a chunked dataset's stored chunk-layout dimensionality matches its dataspace rank when an existing dataset is opened, whereas this check is performed only at dataset-creation time. This allows attackers to cause a denial ...

CVE-2026-19026: NULL Pointer Dereference

H5Zfilternbit in H5Znbit.c in HDF5 through 2.3.0 dereferences cdvalues0 through cdvalues4 without validating that cdvalues is non-NULL or that cdnelmts 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...

CVE-2026-17573

A flaw was found in the HDF5 library. A local user could exploit a double free vulnerability by processing a specially crafted HDF5 file with an oversized chunk size field using the h5repack tool. This could cause the application to unexpectedly terminate, leading to a denial of service...

CVE-2026-17573

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...

DEBIAN-CVE-2026-17573

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...

AZL-94013 CVE-2026-17573 affecting package hdf5 for versions less than 1.14.6-4

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

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...

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

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...

EUVD-2026-49319

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

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

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: Double Free

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...

PT-2026-64976

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...

Linux Distros Unpatched Vulnerability : CVE-2018-17434

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A SIGFPE signal is raised in the function applyfilters of h5repackfilters.c in the HDF HDF5 through 1.10.3 library during an attempted parse of a crafted HDF...