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    CVE-2026-82052

    The $regexFindAll expression can be used by an authenticated user who can run aggregation pipeline stages to crash a MongoDB server (mongod). Under certain specific conditions the  regex match can start in the middle of a multi-code-unit character, triggering an assertion during query execution.

    Published:Sep 8, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 8, 2026
    EPSS Score:0.00359
    CVSS Score:6.5

    Affected Products

    Vendor
    Mongodb
    Product
    Mongodb Server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-617 Reachable Assertion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-82070 (CVSS 7.1) — A security issue in MongoDB Server's diagnostic reporting interface allows an authenticated user with monitori…
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    CVE-2026-82068 (CVSS 7.1) — A security issue in MongoDB Server allows an authenticated user with write privileges to trigger a persistent …
    CVE-2026-82067 (CVSS 9.2) — Improper handling of case sensitivity in the configuration validation component of MongoDB Server may cause th…
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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