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...

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-2026-9335

A vulnerability in keras-team/keras versions = 3.14.0 allows arbitrary local HDF5 file content disclosure due to improper handling of HDF5 ExternalLinks. The KerasFileEditor and keras.saving.loadweights functions bypass the safegeth5group and safegeth5dataset helpers, which are designed to reject...

CVE-2026-9335 Improper Handling of HDF5 ExternalLinks in keras-team/keras

A vulnerability in keras-team/keras versions = 3.14.0 allows arbitrary local HDF5 file content disclosure due to improper handling of HDF5 ExternalLinks. The KerasFileEditor and keras.saving.loadweights functions bypass the safegeth5group and safegeth5dataset helpers, which are designed to reject...

PT-2026-61599

HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If a file is corrupted such that an array datatype's size, the number of elements, and the element size are not in agreement it can trigger an out of bounds read. The array datatype stores the...

Linux Distros Unpatched Vulnerability : CVE-2026-12480

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

CVE-2026-12480 Arbitrary HDF5 File Read via Virtual Dataset Bypass in keras-team/keras

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 ...

CVE-2026-12480

CVE-2026-12480 affects Keras up to 3.13.2. The root cause is an incomplete fix for CVE-2026-1669 in H5IOStore._verify_dataset() and file_editor.py, where the code fails to check the dataset.is_virtual property of HDF5 datasets. This allows an attacker to craft a malicious .keras model archive or ...

PT-2026-54620

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. verify dataset and file editor.py methods, which fail to check the dataset.is virtual property of HDF5 datasets. This...

Astra Linux – Vulnerability in hdf5

A SIGFPE signal is raised in the function H5Dselectio of H5Dselect.c in the HDF HDF5 through 1.10.3 library during an attempt to parse a crafted HDF file. This occurs due to incorrect protection measures against division by zero. This could allow a remote denial-of-service attack to occur...

Astra Linux – Vulnerability in hdf5

There is an out-of-bounds read vulnerability in the gif2h5 functionality of HDF5 Group libhdf5 1.10.4. A specially crafted GIF file can lead to code execution. An attacker can provide a malicious file to exploit this vulnerability...

Unity Linux 20.1070e Security Update: hdf5 (UTSA-2026-017780)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017780 advisory. A SIGFPE signal is raised in the function H5Dchunksetinforeal of H5Dchunk.c in the HDF HDF5 1.10.3 library during an attempted parse of a crafted HDF file, because o...

Unity Linux 20.1070e Security Update: hdf5 (UTSA-2026-017703)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017703 advisory. In HDF5 1.10.1, there is an out of bounds read vulnerability in the function H5Oplineplinedecode in H5Opline.c in libhdf5.a. For example, h5dump would crash when...

Unity Linux 20.1070e Security Update: hdf5 (UTSA-2026-017778)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017778 advisory. A SIGFPE signal is raised in the function H5Dcreatechunkfilemaphyper of H5Dchunk.c in the HDF HDF5 through 1.10.3 library during an attempted parse of a crafted HDF...

Unity Linux 20.1070e Security Update: hdf5 (UTSA-2026-017782)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017782 advisory. 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 file,...

Unity Linux 20.1070e Security Update: hdf5 (UTSA-2026-017707)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017707 advisory. An issue was discovered in the HDF HDF5 1.8.20 library. There is a heap-based buffer over-read in the function H5Olinkdecode in H5Olink.c. Tenable has extracted the...

JLSEC-2026-352

HDF5 is software for managing data. Prior to version 1.14.4-2, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on...

CVE-2026-34734 HDF5: H5T__conv_struct Use After Free

HDF5 is software for managing data. In 1.14.1-2 and earlier, a heap-use-after-free was found in the h5dump helper utility. An attacker who can supply a malicious h5 file can trigger a heap use-after-free. The freed object is referenced in a memmove call from H5Tconvstruct. The original object was...

[CWE-73] Keras — Arbitrary HDF5 File Read via Virtual Dataset Bypass of External Storage Check (CVE-2026-1669 Incomplete Fix)

Description The fix for CVE-2026-1669 in Keras's H5IOStore.verifydataset method savinglib.py:1051 is incomplete. The patch checks dataset.external to block HDF5 datasets that use external file storage, but it does not check dataset.isvirtual. HDF5 Virtual Datasets VDS — created via...

CVE-2026-2492

TensorFlow HDF5 Library Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of TensorFlow. An attacker must first obtain the ability to execute low-privileged code on the target syste...