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    CVE-2026-87824

    zstd-jni before 1.5.7-14 fails to validate the samples buffer capacity in Zstd.trainFromBufferDirect, allowing attackers to read past buffer boundaries by supplying oversized per-sample lengths. Attackers can trigger out-of-bounds memory access by providing crafted sample length arrays that cause the native implementation to walk past the buffer allocation, resulting in JVM termination.

    Published:Sep 9, 2026
    Last Modified:Sep 20, 2026
    EPS:Sep 9, 2026
    EPSS Score:0.00389
    CVSS Score:7.5

    Affected Products

    Vendor
    Luben
    Product
    Zstd-jni

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-90852 (CVSS 5.5) — A vulnerability has been found in luben zstd-jni up to 1.5.7-13. This vulnerability affects the function ZstdC…
    CVE-2026-90560 (CVSS 8.8) — zstd-jni versions 1.2.0 through 1.5.7-13 contain an out-of-bounds read vulnerability in the ZstdDictDecompress…
    CVE-2026-89046 (CVSS 8.8) — zstd-jni versions 1.5.5-6 through 1.5.7-13 contain an out-of-bounds read vulnerability in Zstd.getFrameContent…
    CVE-2026-89045 (CVSS 5.1) — zstd-jni versions 1.4.8-4 through 1.5.7-13 fail to validate negative length parameters in ZstdInputStreamNoFin…
    CVE-2026-87877 (CVSS 7) — zstd-jni versions before 1.5.7-14 fail to validate closed state in setDict, setLongMax, setLevel and setRefMul…
    CVE-2026-87825 (CVSS 7) — zstd-jni before 1.5.7-14 contains a use-after-free vulnerability where streams and contexts hold a dictionary'…
    CVE-2026-87823 (CVSS 8.8) — zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-ByteBuffer frame-size native met…
    CVE-2026-87795 (CVSS 8.8) — zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constr…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High