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    CVE-2026-3172

    Buffer overflow in parallel HNSW index build in pgvector 0.6.0 through 0.8.1 allows a database user to leak sensitive data from other relations or crash the database server.

    Published:Feb 25, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 25, 2026
    EPSS Score:0.00055
    CVSS Score:8.1

    Affected Products

    Vendor
    Pgvector
    Product
    Pgvector

    Exploits

    No exploit reference

    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