JLSEC-2026-298

HDF5 through 1.14.3 contains a buffer overflow in H5Zfilterfletcher32, resulting in the corruption of the instruction pointer and causing denial of service or potential code execution...

JLSEC-2026-346

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FLreggclist of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used...

JLSEC-2026-335

A vulnerability has been found in HDF5 up to 1.14.6 and classified as problematic. This vulnerability affects the function H5MMrealloc of the file src/H5MM.c. The manipulation of the argument mem leads to double free. The attack needs to be approached locally. The exploit has been disclosed to th...

JLSEC-2026-329

A vulnerability was found in HDF5 up to 1.14.6. It has been declared as problematic. Affected by this vulnerability is the function H5Omsgflush of the file src/H5Omessage.c. The manipulation of the argument oh leads to heap-based buffer overflow. The attack needs to be approached locally. The...

JLSEC-2026-351

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FSsectlinksize of the file src/H5FSsection.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to t...

JLSEC-2026-349

A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5FSsinfoserializenodecb of the file src/H5FScache.c. The manipulation leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed ...

JLSEC-2026-331

A vulnerability classified as problematic has been found in HDF5 up to 1.14.6. This affects the function H5FSsinfoSrializeSctcb of the file src/H5FScache.c. The manipulation of the argument sect leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has...

JLSEC-2026-293

HDF5 through 1.14.3 contains a heap buffer overflow in H5HGcacheheapdeserialize, resulting in the corruption of the instruction pointer and causing denial of service or potential code execution...

JLSEC-2026-316

HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5HGread in H5HG.c called from H5VLnativeblobget in H5VLnativeblob.c, resulting in the corruption of the instruction pointer...

JLSEC-2026-330

A vulnerability was found in HDF5 up to 1.14.6. It has been rated as critical. Affected by this issue is the function H5FLblkgclist of the file src/H5FL.c. The manipulation of the argument H5FLblkheadt leads to use after free. An attack has to be approached locally. The exploit has been disclosed...

JLSEC-2026-314

HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5Tcopyreopen in H5T.c, resulting in the corruption of the instruction pointer...

JLSEC-2026-336

A vulnerability was found in HDF5 up to 1.14.6 and classified as problematic. This issue affects the function H5Ocachechkserialize of the file src/H5Ocache.c. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public a...

JLSEC-2026-354

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...

JLSEC-2026-304

HDF5 Library through 1.14.3 allows stack consumption in the function H5Eprintfstack in H5Eint.c...

JLSEC-2026-319

HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5Trefmemsetnull in H5Tref.c called from H5Tconvref in H5Tconv.c, resulting in the corruption of the instruction pointer...

JLSEC-2026-292

HDF5 through 1.14.3 contains a buffer overflow in H5Zfilterscaleoffset, resulting in the corruption of the instruction pointer and causing denial of service or potential code execution...

JLSEC-2026-342

A vulnerability, which was classified as problematic, has been found in HDF5 1.14.6. Affected by this issue is the function H5Omtimenewencode of the file src/H5Omtime.c. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the...

JLSEC-2026-324

HDF5 Library through 1.14.3 has a heap-based buffer overflow in H5Tconvstructopt in H5Tconv.c...

JLSEC-2026-344

A vulnerability, which was classified as problematic, has been found in HDF5 1.14.6. This issue affects the function H5Cloadentry of the file /src/H5Centry.c. The manipulation leads to resource consumption. The attack needs to be approached locally. The exploit has been disclosed to the public an...

JLSEC-2026-341

A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5Faddrdecodelen of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to...