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    CVE-2026-45831

    The SimpleRBACAuthorizationProvider authorization provider in versions 0.5.0 or later of the ChromaDB Python project evaluates whether a user holds a given permission but never checks which tenant, database, or collection that permission applies to allowing users to perform cross tenant actions.

    Published:Jun 12, 2026
    Last Modified:Jun 16, 2026
    EPS:Jun 12, 2026
    EPSS Score:0.00226
    CVSS Score:8.8

    Affected Products

    Vendor
    Chroma
    Product
    Chromadb
    Vendor
    Trychroma
    Product
    Chromadb

    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