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Vulnerabilities CVE-2026-26199

CVE-2026-26199

Medium
Open
TLP:CLEAR

Buffer underflow in `H5Iget_name `/`H5G_get_name` if size is zero

NVD CVE.org
Government Targeting

AI Analysis

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Description

HDF5 is a high-performance library and a file format specification that implements the HDF5 data model. If `H5Iget_name` 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 `H5Iget_name` is invoked in a way where `size` can be forced to zero, and there is important data before the `name` buffer.

Details

CVSS Score
5.9
EPSS Score
0.26%

17.4th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Jul 20, 2026
Last Modified
Jul 20, 2026
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