CVE-2026-19024

A flaw was found in HDF5. A local attacker could exploit a vulnerability in the H5Pgetfillvalue function by providing a specially crafted dataset. This could lead to a denial of service, making the system unavailable. Mitigation To reduce risk prior to patching, restrict processing HDF5 files fro...

CVE-2026-19025

A flaw was found in HDF5. An attacker can craft a malicious HDF5 file that, when opened and read by an application, exploits a validation bypass. This bypass, related to mismatched chunk-layout dimensionality and dataspace rank, leads to a divide-by-zero error, causing a denial of service DoS and...

CVE-2026-26197 affecting package hdf5 for versions less than 1.14.6-4

CVE-2026-26197 affecting package hdf5 for versions less than 1.14.6-4. A patched version of the package is available...

CVE-2026-26199 affecting package hdf5 for versions less than 1.14.6-4

CVE-2026-26199 affecting package hdf5 for versions less than 1.14.6-4. A patched version of the package is available...

CVE-2026-17572 affecting package hdf5 for versions less than 1.14.6-4

CVE-2026-17572 affecting package hdf5 for versions less than 1.14.6-4. A patched version of the package is available...

CVE-2026-17574 affecting package hdf5 for versions less than 1.14.6-4

CVE-2026-17574 affecting package hdf5 for versions less than 1.14.6-4. A patched version of the package is available...

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

CVE-2026-17573 affecting package hdf5 for versions less than 1.14.6-4. A patched version of the package is available...

PYSEC-2026-3629 Keras: HDF5 virtual datasets can disclose local files

Keras versions up to and including 3.13.2 are vulnerable to an arbitrary HDF5 file read due to an incomplete fix for CVE-2026-1669. The vulnerability resides in the H5IOStore.verifydataset and fileeditor.py methods, which fail to check the dataset.isvirtual property of HDF5 datasets. This allows ...

Keras: HDF5 virtual datasets can disclose local files

Keras versions up to and including 3.13.2 are vulnerable to an arbitrary HDF5 file read due to an incomplete fix for CVE-2026-1669. The vulnerability resides in the H5IOStore.verifydataset and fileeditor.py methods, which fail to check the dataset.isvirtual property of HDF5 datasets. This allows ...

GHSA-74M6-M3XX-3VMJ Keras model loading is vulnerable to denial of service through HDF5 shape bombs

A vulnerability in keras-team/keras versions 3.15.0 allows for a denial of service DoS attack when loading malicious .keras model files via the keras.models.loadmodel function. The H5IOStore.getitem method in keras/src/saving/savinglib.py does not validate the shape or size of datasets, leading t...

CVE-2026-12570 Denial of Service via HDF5 Shape Bomb in keras.models.load_model() in keras-team/keras

A vulnerability in keras-team/keras versions = 3.15.0 allows for a denial of service DoS attack when loading malicious .keras model files via the keras.models.loadmodel function. The H5IOStore.getitem method in keras/src/saving/savinglib.py does not validate the shape or size of datasets, leading...

CVE-2026-12570 Denial of Service via HDF5 Shape Bomb in keras.models.load_model() in keras-team/keras

A vulnerability in keras-team/keras versions = 3.15.0 allows for a denial of service DoS attack when loading malicious .keras model files via the keras.models.loadmodel function. The H5IOStore.getitem method in keras/src/saving/savinglib.py does not validate the shape or size of datasets, leading...

OESA-2026-3262 hdf5 security update

HDF5 is a data model, library, and file format for storing and managing data. It supports an unlimited variety of datatypes, and is designed for flexible and efficient I/O and for high volume and complex data. HDF5 is portable and is extensible, allowing applications to evolve in their use of HDF...

OESA-2026-3261 hdf5 security update

HDF5 is a data model, library, and file format for storing and managing data. It supports an unlimited variety of datatypes, and is designed for flexible and efficient I/O and for high volume and complex data. HDF5 is portable and is extensible, allowing applications to evolve in their use of HDF...

EUVD-2026-53686

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 ...

EUVD-2026-53659

Untrusted pointer dereference in the renderbinoutput function in the h5dump tool in HDF5 before 2.1.1 allows attackers to cause a denial of service via a variable-length string dataset with more than one element dumped in binary mode, which corrupts the per-element stride calculation and causes...

AZL-94496 CVE-2026-19027 affecting package hdf5 1.14.6-4

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...

DEBIAN-CVE-2026-19027

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...

AZL-94499 CVE-2026-19028 affecting package hdf5 1.14.6-4

H5Zfilterfletcher32 in H5Zfletcher32.c in HDF5 through 2.3.0 computes the data length to checksum by subtracting the 4-byte trailing checksum size from the input buffer size without checking that the buffer is at least 4 bytes, allowing a sizet underflow. This allows attackers to cause a denial o...

Linux Distros Unpatched Vulnerability : CVE-2026-19025

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 wh...