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    CVE-2026-82531

    Smarty before 4.5.8 and 5.x before 5.8.5 contains a code injection vulnerability where the top-level nocache_hash is never restored during extends:/multi-component template inheritance, leaving it null. Attackers can supply assigned data containing a forged SmartyNocache marker that is copied verbatim into the regenerated PHP cache file, executing arbitrary PHP on include for remote code execution.

    Published:Oct 6, 2026
    Last Modified:Oct 7, 2026
    EPS:Oct 6, 2026
    EPSS Score:
    CVSS Score:8.1

    Affected Products

    Vendor
    Newmediacompany
    Product
    Smarty
    Vendor
    Smarty-php
    Product
    Smarty

    Exploits

    https://github.com/murrez/CVE-2026-82531

    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