BIT-mongodb-2026-82052

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    BIT-mongodb-2026-82052

    Published: 17 Sept 2026Last Modified: 17 Sept 2026

    Summary: $regexFindAll may crash mongod server when byte-matching multi-byte UTF-8 chars

    Details: 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.

    References: https://jira.mongodb.org/browse/SERVER-127985, https://nvd.nist.gov/vuln/detail/CVE-2026-82052

    Affected packages

    Package

    Name: mongodb

    Purl: pkg:bitnami/mongodb

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 7.0.0
    Fixed -7.0.41

    Affected versions

    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
    BIT-mongodb-2026-82052 | CVE-DB