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CVE-2026-82074— Incorrect Authorization in MongoDB Server Aggregation Framework Allows Unauthorized Read Access to Collection Data

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 在聚合框架中存在一个授权错误漏洞。拥有最小权限的已认证用户能够构造一个特殊格式的聚合请求，导致服务器的授权子系统评估的操作与实际执行的操作不一致，从而使得用户能够未经授权地读取目标数据库中集合的数据。

CVSS 6.5 · Medium

Affected Version Matrix 2

VendorProduct Version RangeStatus
MongoDB MongoDB Server 8.0.0< 8.0.30 affected
7.0.0< 7.0.41 affected
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I. Basic Information for CVE-2026-82074

Vulnerability Information
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Vulnerability Title
Incorrect Authorization in MongoDB Server Aggregation Framework Allows Unauthorized Read Access to Collection Data
Source: CVE Program / CVE List V5
Vulnerability Description
MongoDB Server contains an incorrect authorization vulnerability in the aggregation framework. An authenticated user with minimal privileges can craft a specially formatted aggregation request that causes the server's authorization subsystem to evaluate a different operation than what is actually executed, resulting in unauthorized read access to collection data within the target database.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MongoDB MongoDB Server 8.0.0 ~ 8.0.30 -

II. Public POCs for CVE-2026-82074

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III. Intelligence Information for CVE-2026-82074

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Proof of Concept for CVE-2026-82074 (1)

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-2026-82067 8.1 HIGH Improper Case Sensitivity Handling in MongoDB Server Configuration Validation May Cause Au
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-2026-82068 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 &rarr; →

IV. Related Vulnerabilities

Same product: MongoDB Server
Same vendor: MongoDB
Same weakness: CWE-863

V. Comments for CVE-2026-82074

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