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    CVE-2026-76267

    In Splunk Enterprise versions below 10.4.3, 10.2.7, and 10.0.10, a user that holds a role with the read_o11y_content capability could inject forged entries into the app log through the Representational State Transfer (REST) API. The vulnerability is possible because Splunk App for Splunk O11y Cloud does not neutralize user-supplied SignalFlow content before writing it to the app log. Splunk Enterprise versions 9.4.x are not affected.

    Published:Oct 7, 2026
    Last Modified:Oct 14, 2026
    EPS:Oct 7, 2026
    EPSS Score:0.00166
    CVSS Score:4.3

    Affected Products

    Vendor
    Splunk
    Product
    Splunk
    Vendor
    Splunk
    Product
    Splunk Enterprise

    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