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CVE-2026-8200— Schema validation log messages may not redact user data

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存在日志信息泄露漏洞，该漏洞源于模式验证日志生成时未完全编辑用户数据，可能导致敏感信息泄露。以下版本受到影响：7.0.34之前版本、8.0.23之前版本、8.2.9之前版本和8.3.2之前版本。

CVSS 2.7 · Low EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 4

VendorProduct Version RangeStatus
MongoDB, Inc. MongoDB Server 7.0< 7.0.34 affected
8.0< 8.0.23 affected
8.2< 8.2.9 affected
8.3< 8.3.2 affected
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I. Basic Information for CVE-2026-8200

Vulnerability Information
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Vulnerability Title
Schema validation log messages may not redact user data
Source: CVE Program / CVE List V5
Vulnerability Description
When schema validation is enabled on a collection and an update or insert would violate the collection's schema, the local server log message generated may not have all user data redacted.  This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
MongoDB Server 日志信息泄露漏洞
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存在日志信息泄露漏洞，该漏洞源于模式验证日志生成时未完全编辑用户数据，可能导致敏感信息泄露。以下版本受到影响：7.0.34之前版本、8.0.23之前版本、8.2.9之前版本和8.3.2之前版本。
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 7.0 ~ 7.0.34 -

II. Public POCs for CVE-2026-8200

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III. Intelligence Information for CVE-2026-8200

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Patches & Fixes for CVE-2026-8200 (1)

Same Patch Batch · MongoDB, Inc. · 2026-05-13 · 5 CVEs total

CVE-2026-8336 7.5 HIGH Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands
CVE-2026-8199 6.5 MEDIUM Post-auth memory exhaustion via bitwise match expressions
CVE-2026-8201 6.4 MEDIUM Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Enc
CVE-2026-8202 4.3 MEDIUM Post-authentication CPU utilization DoS via $trim/$ltrim/$rtrim operators

IV. Related Vulnerabilities

Same product: MongoDB Server
Same vendor: MongoDB, Inc.
Same weakness: CWE-532

V. Comments for CVE-2026-8200

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