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CVE-2026-82067— Improper Case Sensitivity Handling in MongoDB Server Configuration Validation May Cause Authorization to Remain Disabled at Startup

Quick assessment

Affected

MongoDB MongoDB Server

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MongoDB Server是美国MongoDB公司开源的一款面向文档的数据库系统。 MongoDB Server 8.3.0版本至8.3.9之前版本、8.0.0版本至8.0.30之前版本和7.0.0版本至7.0.41之前版本存在输入验证错误漏洞，该漏洞源于配置验证组件对大小写敏感性的处理不当，可能导致服务器启动期间授权子系统保持默认禁用状态，允许未经身份验证的用户通过网络执行任意管理操作，影响数据机密性、完整性和可用性。

CVSS 8.1 · High EPSS 0.51% · P42 Updated Sep 09, 2026

Possible ATT&CK Techniques 2 AI

T1205 · Traffic Signaling T1078 · Valid Accounts

Affected Version Matrix 3

Vendor	Product	Version Range	Status
MongoDB	MongoDB Server	`8.3.0< 8.3.9`	affected
		`8.0.0< 8.0.30`	affected
		`7.0.0< 7.0.41`	affected

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I. Basic Information for CVE-2026-82067

Vulnerability Information

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Vulnerability Title

Improper Case Sensitivity Handling in MongoDB Server Configuration Validation May Cause Authorization to Remain Disabled at Startup

Source: CVE Program / CVE List V5

Vulnerability Description

Improper handling of case sensitivity in the configuration validation component of MongoDB Server may cause the authorization subsystem to remain in a default disabled state during server startup. An unauthenticated user with network access to a deployment where this condition occurs can perform arbitrary administrative operations, resulting in full impact of data confidentiality, integrity, and availability.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

大小写敏感处理不恰当

Source: CVE Program / CVE List V5

Vulnerability Title

MongoDB Server 输入验证错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
MongoDB	MongoDB Server	8.3.0 ~ 8.3.9	-

II. Public POCs for CVE-2026-82067

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-82067

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Vendor Pages for CVE-2026-82067 (1)

🔗 [SERVER-131229] enforce case-sensitivity in options validation - MongoDB Jira

https://www.cve.org/CVERecord?id=CVE-2026-82067

Same Patch Batch · MongoDB · 2026-09-08 · 24 CVEs total

CVE-2026-82061	8.1 HIGH	Use-After-Free in MongoDB Server Query Execution Memory Tracking Subsystem Leads to Denial
CVE-2026-82071	8.1 HIGH	Insufficient Validation of Storage Engine Configuration Options in MongoDB Server Leads to
CVE-2026-82053	8.1 HIGH	Improper Session Handling in MongoDB Server LDAP Authorization Integration Leads to Incorr
CVE-2026-82075	7.5 HIGH	Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated
CVE-2026-82064	7.5 HIGH	Unauthenticated Denial of Service in MongoDB Server via Assertion Failure in Read Concern
CVE-2026-82070	6.5 MEDIUM	Insufficiently Protected Credentials in MongoDB Server Diagnostic Reporting Interface
CVE-2026-82076	6.5 MEDIUM	Integer Overflow in Query Planner Leads to Unbounded Memory Allocation and Denial of Servi
CVE-2026-82065	6.5 MEDIUM	Insufficient Validation of Storage Configuration Options in MongoDB Server Leads to Persis
CVE-2026-82054	6.5 MEDIUM	Uncontrolled Resource Consumption in MongoDB Server JSON Pointer Parser Leads to Denial of
CVE-2026-82055	6.5 MEDIUM	Null Pointer Dereference in MongoDB Server 2dsphere Index Key Generation Leads to Denial o
CVE-2026-82057	6.5 MEDIUM	Type Confusion in MongoDB Server WiredTiger Storage Engine via Custom Collection Configura
CVE-2026-82074	6.5 MEDIUM	Incorrect Authorization in MongoDB Server Aggregation Framework Allows Unauthorized Read A
CVE-2026-82068	6.5 MEDIUM	Persistent Fatal Assertion Crash in MongoDB Server via Crafted Retryable Write Commands Le
CVE-2026-82058	6.5 MEDIUM	Unhandled Exception in MongoDB Server JSON Schema Validation Error Generation Leads to Den
CVE-2026-82052	6.5 MEDIUM	$regexFindAll may crash mongod server when byte-matching multi-byte UTF-8 chars
CVE-2026-82073	6.5 MEDIUM	Improper Validation in MongoDB Server Aggregation Framework Allows Authorization Bypass an
CVE-2026-82062	5.5 MEDIUM	Improper Authorization in MongoDB Server applyOps Command Allows Writes to Arbitrary Inter
CVE-2026-82060	5.4 MEDIUM	Insufficient Validation of Shard Key Values in MongoDB Server Leads to Query Operator Inje
CVE-2026-82063	5.3 MEDIUM	Use-After-Free in MongoDB Server Cursor Management Component Leads to Denial of Service
CVE-2026-82056	5.3 MEDIUM	Race Condition in MongoDB Server Text Index Query Parsing Leads to Heap Use-After-Free and

Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: MongoDB Server

Same vendor: MongoDB

Same weakness: CWE-178