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CVE-2026-8063— Post-auth null pointer dereference when aggregating against a view with empty search pipeline

Quick assessment

Affected
MongoDB Inc. 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公司的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server 8.2 8.2.7之前版本存在代码问题漏洞，该漏洞源于空管道检查不足，可能导致空指针取消引用并导致服务器崩溃。

CVSS 6.5 · Medium EPSS 0.39% · P31

Affected Version Matrix 1

VendorProduct Version RangeStatus
MongoDB Inc. MongoDB Server 8.2.0< 8.2.7 affected
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I. Basic Information for CVE-2026-8063

Vulnerability Information
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Vulnerability Title
Post-auth null pointer dereference when aggregating against a view with empty search pipeline
Source: CVE Program / CVE List V5
Vulnerability Description
An authenticated user can crash mongod when running $rankFusion or $scoreFusion with an empty pipeline on a view. When resolving a view, the server inspects the aggregation pipeline to determine whether it begins with an Atlas Search stage. For $rankFusion and $scoreFusion, this inspection reads the first element on each stage’s input pipeline array without first verifying that the array is non-empty. Supplying an empty pipeline causes a null pointer dereference and crashes the server. This issue affects MongoDB Server 8.2 versions prior to 8.2.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
MongoDB Server 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB Server是美国MongoDB公司的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server 8.2 8.2.7之前版本存在代码问题漏洞，该漏洞源于空管道检查不足，可能导致空指针取消引用并导致服务器崩溃。
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 Inc. MongoDB Server 8.2.0 ~ 8.2.7 -

II. Public POCs for CVE-2026-8063

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III. Intelligence Information for CVE-2026-8063

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Other References for CVE-2026-8063 (1)

IV. Related Vulnerabilities

Same product: MongoDB Server
Same vendor: MongoDB Inc.
Same weakness: CWE-476

V. Comments for CVE-2026-8063

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