CVE-2026-19029
6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets an attacker cause a denial of service (application crash) with a crafted HDF5 file. When the stored minimum bits equal the full precision of the datatype, the decoder copies d_nelmts * size bytes from the compressed chunk without checking that the chunk holds that many bytes. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| The HDF Group | HDF5 | < 2.2.0 | affected |
Weaknesses
- CWE-125: CWE-125 Out-of-bounds read
References
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