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    2 vulnerabilities found for Scale-Offset Filter by The HDF Group

    CVE-2026-120754 (GCVE-0-2026-120754)

    Vulnerability from nvd – Published: 2026-11-03 15:24 – Updated: 2026-11-03 17:58
    VLAI
    Title
    Uninitialized Heap Memory Disclosure via Truncated Chunk in HDF5 Scale-Offset Filter
    Summary
    HDF5 through 2.2.0 contains an uninitialized memory read vulnerability in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c. The decode path validates reads against the allocated size of the chunk buffer rather than the number of bytes actually read from the file. Because H5D__chunk_lock() deliberately sizes filtered chunk buffers to the larger of the stored and unfiltered chunk sizes and fills only the stored bytes, a truncated chunk passes these bounds checks and is decompressed from the uninitialized remainder of the allocation. Unrelated heap contents are then returned to the caller as dataset data. Because the reads remain within the allocation, the issue is not detected by AddressSanitizer. An attacker who can get a user or application to read a dataset from a crafted HDF5 file can cause disclosure of process memory. This issue exists because of an incomplete fix for CVE-2026-19029.
    Severity
    1.9 (Low)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-11-03 17:58 UTC
    CWE
    • CWE-908 - Use of uninitialized resource
    Assigner
    HDFG CNA under the redhat root
    CNA scorecard C 72/100 over 18 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-120754 (GCVE-0-2026-120754)

    Vulnerability from cvelistv5 – Published: 2026-11-03 15:24 – Updated: 2026-11-03 17:58
    VLAI
    Title
    Uninitialized Heap Memory Disclosure via Truncated Chunk in HDF5 Scale-Offset Filter
    Summary
    HDF5 through 2.2.0 contains an uninitialized memory read vulnerability in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c. The decode path validates reads against the allocated size of the chunk buffer rather than the number of bytes actually read from the file. Because H5D__chunk_lock() deliberately sizes filtered chunk buffers to the larger of the stored and unfiltered chunk sizes and fills only the stored bytes, a truncated chunk passes these bounds checks and is decompressed from the uninitialized remainder of the allocation. Unrelated heap contents are then returned to the caller as dataset data. Because the reads remain within the allocation, the issue is not detected by AddressSanitizer. An attacker who can get a user or application to read a dataset from a crafted HDF5 file can cause disclosure of process memory. This issue exists because of an incomplete fix for CVE-2026-19029.
    Severity
    1.9 (Low)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-11-03 17:58 UTC
    CWE
    • CWE-908 - Use of uninitialized resource
    Assigner
    HDFG CNA under the redhat root
    CNA scorecard C 72/100 over 18 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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