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    CVE-2026-4870

    IBM Qiskit SDK 0.43.0 through 2.5.0 could allow an attacker to trigger a segmentation fault leading to a denial of service due to uncontrolled recursion in the parser.

    Published:Jun 12, 2026
    Last Modified:Jun 16, 2026
    EPS:Jun 12, 2026
    EPSS Score:0.00268
    CVSS Score:7.5

    Affected Products

    Vendor
    Ibm
    Product
    Qiskit
    Vendor
    Ibm
    Product
    Qiskit Sdk
    Vendor
    Ibm
    Product
    Qiskit Software Development Kit

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-674 Uncontrolled Recursion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads

    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