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    CVE-2026-88026

    Improper neutralization of regular-expression metacharacters in the LINQ query translation component of the MongoDB C# Driver can cause a caller-supplied character sequence to alter a regular-expression predicate generated by an affected application. An authenticated user who can influence such a value may cause the application to return records beyond those intended by the original filter.

    Published:Sep 10, 2026
    Last Modified:Sep 11, 2026
    EPS:Sep 10, 2026
    EPSS Score:
    CVSS Score:6.5

    Affected Products

    Vendor
    Mongodb
    Product
    C# Driver

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    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
    CVE-2026-88026 — Mongodb (High 7.1) | CVE-DB