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High WID-SEC-2026-2794 25 CVEs

MongoDB: Mehrere Schwachstellen

Published Aug 11, 2026 · Updated Oct 15, 2026 · Revision 3 · de-DE

Vendor: Red Hat Product: Enterprise Linux Platform: Linux Platform: Windows

Summary

Ein Angreifer kann mehrere Schwachstellen in MongoDB ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um beliebigen Programmcode auszuführen.

Product

MongoDB ist ein Open-Source-Dokumentendatenbank.

Vulnerabilities 25

  • High 8.8
    CVE-2026-18691

    Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure

    An issue in MongoDB Server's intra-cluster connection setup could allow a party with suitable network access to influence which authentication mechanism is used when one replica set member connects to another. Under certain conditions, this could cause the cl…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 8.8
    CVE-2026-18692

    Use-After-Free in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Remote Code Execution

    An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a ser…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 8.1
    CVE-2026-18690

    Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections

    An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that their assigned privileges should not permit. This could result in critical system collections being…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 8.1
    CVE-2026-18712

    Improper Authorization in MongoDB Queryable Encryption Maintenance Operations Allows Unauthorized Modification of Other Collections

    An issue in MongoDB Server's Queryable Encryption maintenance operations could allow an authenticated user with privileges on one encrypted collection to cause unauthorized modification or destruction of data belonging to a different collection. This is due t…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 7.6
    CVE-2026-18693

    Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure

    An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucke…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 7.5
    CVE-2026-18697

    Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos

    An issue in MongoDB Server's aggregation framework could allow an unauthenticated party to cause a mongos (router) process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service, disrupting cli…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 7.1
    CVE-2026-18687

    Improper Validation in MongoDB Queryable Encryption Maintenance Operation Leads to Denial of Service and Index Corruption

    MongoDB Server's handling of a Queryable Encryption maintenance operation did not properly validate certain request parameters against the collection's encrypted field configuration before use. An authenticated user with readWrite privileges could submit a sp…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 7.1
    CVE-2026-18688

    Out-of-Bounds Read in MongoDB Aggregation Framework Leads to Denial of Service and Potential Memory Disclosure

    An issue in MongoDB Server's aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 7.1
    CVE-2026-18694

    Out-of-Bounds Read in MongoDB Geospatial Query Processing Leads to Denial of Service and Potential Memory Disclosure

    An issue in MongoDB Server's geospatial query processing could allow an authenticated user with write privileges to cause certain malformed geometry data to be stored and later processed without proper validation. Subsequent queries against this data could th…

    MongoDB MongoDB Server mongodb Ubuntu
  • High 7.1
    CVE-2026-18711

    Use-After-Free in MongoDB Query Execution Engine Leads to Denial of Service and Potential Memory Disclosure

    An issue in MongoDB Server's query execution engine could allow an authenticated user with read and write privileges to cause an internal reference to be used after the underlying memory has been freed, when running certain queries against time-series collect…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.6
    CVE-2026-18706

    Use-After-Free in MongoDB $graphLookup Aggregation Stage Leads to Denial of Service and Potential Remote Code Execution

    An issue in MongoDB Server's $graphLookup aggregation stage could allow an authenticated user able to issue aggregation and memory-management commands to cause an internal reference to be used after the underlying memory has been freed. This could result in a…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18695

    Improper Input Validation in MongoDB Timeseries Query Processing Leads to Denial of Service

    An issue in MongoDB Server's handling of certain query predicates against time-series collections with a metaField could allow an authenticated user with write access to cause the server process to terminate unexpectedly, resulting in a denial of service.

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18696

    Improper Authorization in MongoDB applyOps Command Handling Allows Unauthorized DDL Operations on Collections

    An issue in MongoDB Server's applyOps command could allow an authenticated user with specific non-default privileges to perform certain data-definition operations, such as dropping or modifying collections, against collections they do not have permission to m…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18699

    Improper Input Validation in MongoDB Query Planner Leads to Denial of Service

    An issue in MongoDB Server's query planner could allow an authenticated user with read-level privileges to cause the server process to terminate unexpectedly by submitting a specially formed query against a collection with a text index. This could result in a…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18700

    Use-After-Free in MongoDB Geospatial Validation Leads to Denial of Service

    An issue in MongoDB Server's geospatial validation could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed, through concurrent operations against a collection using a certain…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18701

    Type Confusion in MongoDB Query Subsystem Leads to Denial of Service

    An issue in MongoDB Server's query subsystem could allow an authenticated user with read privileges to cause the server process to terminate unexpectedly by submitting a specially formed query filter. This could result in a denial of service.

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18704

    Improper Authorization in MongoDB Aggregation Framework Allows Read-Only User to Perform Unauthorized Write Operations

    An issue in MongoDB Server's aggregation framework could allow an authenticated user with only read privileges to perform write operations against collections they should not be able to modify. This is due to an internal-use aggregation stage being reachable …

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18705

    Improper Authorization in MongoDB Atlas Vector Search Allows Unauthorized Access to Protected View Data

    An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.5
    CVE-2026-18710

    Cleartext Storage of Sensitive Information in MongoDB Driver Logging During Client Initialization

    A MongoDB driver component could write sensitive configuration information, including a credential used for outbound network connectivity, to application log output in cleartext during routine client initialization. This occurs automatically as part of normal…

    MongoDB MongoDB Driver mongo-java-driver Ubuntu
  • Medium 6.4
    CVE-2026-18702

    Improper Authorization in MongoDB profile Command Allows Unauthorized Modification of Server-Wide Diagnostic Settings

    An issue in MongoDB Server could allow an authenticated user with limited, database-scoped privileges to modify diagnostic logging settings that affect the entire server rather than just the intended database. This could allow suppression of diagnostic loggin…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.4
    CVE-2026-18708

    Improper Neutralization of Input in MongoDB Server's JavaScript Scripting Engine Leads to Unauthorized Code Execution Within Query Scopes

    An issue in MongoDB Server's JavaScript scripting engine could allow an authenticated user with write privileges to cause code they control to be executed within the query scope of other users, through a specially crafted stored value processed during an inte…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 6.4
    CVE-2026-18709

    Missing Authorization in MongoDB Sharded Transaction Commit/Abort Handling Leads to Cross-Shard Data Inconsistency

    An issue in MongoDB Server could allow an authenticated user with direct network access to a shard to improperly commit or abort an in-progress prepared transaction, bypassing the intended transaction coordination process. This could result in cross-shard dat…

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 5.4
    CVE-2026-18698

    Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections via the validate Command

    An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that should require more specific privileges. This could result in exposure of collection metadata and, …

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 4.3
    CVE-2026-18707

    Improper Input Validation in MongoDB Aggregation Command Handling Leads to Denial of Service

    An issue in MongoDB Server could allow an authenticated user, including one with no assigned privileges, to cause the server process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service.

    MongoDB MongoDB Server mongodb Ubuntu
  • Medium 4.2
    CVE-2026-18703

    Improper Enforcement of Authentication Mechanism Restrictions in MongoDB Server Allows Use of Disabled Authentication Method

    An issue in MongoDB Server could allow a party with a valid client certificate and a corresponding user account to authenticate using a certificate-based authentication method, even when an administrator has configured the server to restrict authentication to…

    MongoDB MongoDB Server mongodb Ubuntu

Revision history

  1. #3

    Neue Updates von Red Hat aufgenommen

  2. #2

    Neue Updates von Red Hat aufgenommen

  3. #1

    Initiale Fassung

References