CVE Feed

    Dashboard / CVE / CVE-2026-85664

    CVE-2026-85664

    Chroma 1.5.9 fails to validate maximum bounds on HNSW index parameters max_neighbors, ef_construction, and ef_search in collection-create requests. Unauthenticated attackers can supply arbitrarily large parameter values to exhaust server memory and cause denial of service during index compaction.

    Published:Sep 4, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 4, 2026
    EPSS Score:0.00366
    CVSS Score:7.5

    Affected Products

    Vendor
    Chroma-core
    Product
    Chroma

    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