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    CVE-2026-18022

    Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit systems are affected.

    Published:Jul 29, 2026
    Last Modified:Aug 20, 2026
    EPS:Jul 29, 2026
    EPSS Score:0.00343
    CVSS Score:8.8

    Affected Products

    Vendor
    Pgvector
    Product
    Pgvector
    Vendor
    Pgvector Project
    Product
    Pgvector

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    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