These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-06T00:16:53.427Z and has not been modified since then. The vulnerability is a size_t underflow in HDF5's H5Z__filter_fletcher32 function, allowing for a denial of service via a crafted HDF5 file. This occurs when computing the data length to checksum by subtracting the 4-byte trailing checksum size [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-06T00:16:53.253Z and has not been modified since then. The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic 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 [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-05T23:16:53.617Z and has not been modified since then. The H5Z__filter_nbit function in H5Znbit.c of HDF5 through 2.3.0 is vulnerable to a denial of service attack. This function dereferences cd_values[0] through cd_values[4] without validating that cd_values is non-NULL or that cd_nelmts is at leas [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-05T23:16:53.483Z and has not been modified since then. The H5O__layout_decode function 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. This allows attackers to cause a de [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-05T23:16:53.343Z and has not been modified since then. This CVE record details a NULL pointer dereference vulnerability in H5Pget_fill_value in HDF5 versions before 2.1.1. The vulnerability allows attackers to cause a denial of service via a dataset with a version 1 or 2 fill value message that has [truncated]
The CVE record for CVE-2026-19023 was published on 2026-08-05T23:16:53.187Z and has not been modified since then. The NVD entry is currently empty. This vulnerability affects HDF5 versions before 2.1.1, specifically in the h5dump tool when dumping variable-length string datasets in binary mode. Users of HDF5 versions before 2.1.1 who use the h5dump tool should be aware of this vulnerability and take steps [truncated]
A NULL pointer dereference vulnerability exists in HDF5. The issue arises when processing a crafted HDF5 file containing an attribute with an invalid variable-length datatype type field, which may cause the application to crash when the attribute is read. This vulnerability affects HDF5 deployments in various environments, potentially leading to application crashes or security issues. Developers and users [truncated]
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. This vulnerability could potentially lead to denial-of-service or code execution attacks. Users should review the official CVE record and NVD details for specific affected versions and mitigation strategies.
