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    CVE-2026-75935

    Uncontrolled memory allocation in the binary Ion stream cursor in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted Ion binary document containing a declared-length field that causes excessive heap preallocation. To remediate this issue, users should upgrade to version 1.12.0.

    Published:Aug 18, 2026
    Last Modified:Aug 21, 2026
    EPS:Aug 18, 2026
    EPSS Score:0.00441
    CVSS Score:7.5

    Affected Products

    Vendor
    Amazon
    Product
    Ion
    Vendor
    Amazon Ion
    Product
    Amazon Ion Java

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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