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    CVE-2026-33378

    Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.

    Published:May 13, 2026
    Last Modified:May 28, 2026
    EPS:May 13, 2026
    EPSS Score:0.00015
    CVSS Score:6.5

    Affected Products

    Vendor
    Grafana
    Product
    Grafana

    Exploits

    No exploit reference

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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