CVE-2026-26199 Buffer underflow in `H5Iget_name `/`H5G_get_name` if size is zero

HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If H5Igetname is invoked on a group id with 0 for the size parameter, it will underflow when trying to place a null terminator in the buffer. This can occur if H5Igetname is invoked in a way...

CVE-2026-26199 Buffer underflow in `H5Iget_name `/`H5G_get_name` if size is zero

HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If H5Igetname is invoked on a group id with 0 for the size parameter, it will underflow when trying to place a null terminator in the buffer. This can occur if H5Igetname is invoked in a way...

CVE-2026-26199

HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If H5Igetname is invoked on a group id with 0 for the size parameter, it will underflow when trying to place a null terminator in the buffer. This can occur if H5Igetname is invoked in a way...

CVE-2026-26197

CVE-2026-26197 affects HDF5. A vulnerability arises when an HDF5 file is maliciously altered such that the array datatype’s full size, element count, and element size do not align (dt->shared->size, dt->shared->u.array.nelem, dt->shared->parent->shared->size). If these val...

CVE-2026-26197 Array full size, element count, and element size are not checked to make sure they match in H5Odtype.c

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...

CVE-2026-26197 Array full size, element count, and element size are not checked to make sure they match in H5Odtype.c

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...

CVE-2025-44904 affecting package hdf5 for versions less than 1.14.6-3

CVE-2025-44904 affecting package hdf5 for versions less than 1.14.6-3. A patched version of the package is available...

PYSEC-2026-2546 Keras has a Local File Disclosure via HDF5 External Storage During Keras Weight Loading

Summary TensorFlow / Keras continues to honor HDF5 “external storage” and ExternalLink features when loading weights. A malicious .weights.h5 or a .keras archive embedding such weights can direct loadweights to read from an arbitrary readable filesystem path. The bytes pulled from that path...

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

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CVE-2026-12480

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 ...

DEBIAN-CVE-2026-12480

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

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 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

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 ...

Advisory ROSA-SA-2026-3296

CVE-ID: CVE-2020-10809 BDU-ID: 2024-07119 CVE-Crit: MEDIUM CVE-DESC.: Vulnerability in the Decompress function in the decompress.c file. This vulnerability is related to writing beyond the memory bounds. Exploitation of this vulnerability could allow an attacker to cause a service failure...

Astra Linux – Vulnerability in hdf5

There is a heap-based buffer overflow 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...

Astra Linux – Vulnerability in hdf5

There is an out-of-bounds write 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...

Astra Linux – Vulnerability in hdf5

A SIGFPE signal is raised in the function H5Dcreatechunkfilemaphyper of H5Dchunk.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 against division by zero. This could allow a remote denial-of-service attack...

OSV-2026-716 Heap-buffer-overflow in H5VM_memcpyvv

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=511687450 Crash type: Heap-buffer-overflow READ 4 Crash state: H5VMmemcpyvv H5Dcompactreadvv H5Dselectio...

Unity Linux 20.1070e Security Update: hdf5 (UTSA-2026-017783)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017783 advisory. Memory leak in the H5Ochunkdeserialize function in H5Ocache.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service memory consumption...