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CVE-2026-93762— Data deletion and attribute disclosure via field-name method injection in in-memory queries

Quick assessment

Affected
MongoDB Inc. Mongoid
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.

Mongoid contains an unsafe reflection weakness in the query path used for embedded documents. An application that passes an externally supplied field name to certain in-memory query methods may allow an unauthenticated party to obtain unintended disclosure of

CVSS 9.8 · Critical

Affected Version Matrix 6

VendorProduct Version RangeStatus
MongoDB Inc. Mongoid 9.1.0 affected
9.0.0≤ 9.0.11 affected
8.1.0≤ 8.1.12 affected
8.0.0≤ 8.0.12 affected
7.6.0≤ 7.6.1 affected
7.5.0≤ 7.5.4 affected
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I. Basic Information for CVE-2026-93762

Vulnerability Information
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Vulnerability Title
Data deletion and attribute disclosure via field-name method injection in in-memory queries
Source: CVE Program / CVE List V5
Vulnerability Description
Mongoid contains an unsafe reflection weakness in the query path used for embedded documents. An application that passes an externally supplied field name to certain in-memory query methods may allow an unauthenticated party to obtain unintended disclosure of stored document data and to permanently remove stored records.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MongoDB Inc. Mongoid 9.1.0 -

II. Public POCs for CVE-2026-93762

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III. Intelligence Information for CVE-2026-93762

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Other References for CVE-2026-93762 (1)

Same Patch Batch · MongoDB Inc. · 2026-09-18 · 8 CVEs total

CVE-2026-93765 9.1 CRITICAL Document deletion and process crash via unvalidated method-name dispatch in atomic pop ope
CVE-2026-93759 8.6 HIGH Server-side JavaScript injection via string query criteria bypassing the strict operator a
CVE-2026-93760 8.2 HIGH NoSQL injection of JavaScript-executing query operators via unsafe-by-default operator gua
CVE-2026-93758 8.1 HIGH Cross-principal document update, theft, and deletion via unvalidated id in nested attribut
CVE-2026-93761 7.5 HIGH Denial of service via unbounded regex matching in Mongoid's in-memory query matcher
CVE-2026-93763 6.5 MEDIUM Silent plaintext persistence via unresolved callable database name in encryption schema ma
CVE-2026-93764 6.5 MEDIUM Plaintext storage of encrypted fields via skipped embedded models in encryption schema gen

IV. Related Vulnerabilities

Same product: Mongoid
Same vendor: MongoDB Inc.
Same weakness: CWE-470

V. Comments for CVE-2026-93762

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