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    CVE-2026-14678

    Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

    Published:Aug 13, 2026
    Last Modified:Aug 29, 2026
    EPS:Aug 13, 2026
    EPSS Score:0.00195
    CVSS Score:4.3

    Affected Products

    Vendor
    Postgresql
    Product
    Postgresql

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-126 Buffer Over-read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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