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CVE-2026-31872— Parse Server has a protected fields bypass via dot-notation in query and sort

Quick assessment

Affected
parse-community parse-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.

Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.6.0-alpha.6之前版本和8.6.32之前版本存在访问控制错误漏洞，该漏洞源于protectedFields类级权限可通过点符号绕过，可能导致受保护字段值被枚举。

AI Predicted 6.5 Difficulty: Easy EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2026-31872

Vulnerability Information
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Vulnerability Title
Parse Server has a protected fields bypass via dot-notation in query and sort
Source: CVE Program / CVE List V5
Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Parse Server 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.6.0-alpha.6之前版本和8.6.32之前版本存在访问控制错误漏洞，该漏洞源于protectedFields类级权限可通过点符号绕过，可能导致受保护字段值被枚举。
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
parse-community parse-server >= 9.0.0 < 9.6.0-alpha.6 -

II. Public POCs for CVE-2026-31872

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III. Intelligence Information for CVE-2026-31872

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Vendor Advisories for CVE-2026-31872 (1)

Vendor Pages for CVE-2026-31872 (2)

Same Patch Batch · parse-community · 2026-03-11 · 9 CVEs total

CVE-2026-31840 Parse Server has a SQL injection via dot-notation field name in PostgreSQL
CVE-2026-31856 Parse Server has a SQL injection via `Increment` operation on nested object field in Postg
CVE-2026-31871 Parse Server has a SQL Injection via dot-notation sub-key name in `Increment` operation on
CVE-2026-31875 Parse Server MFA recovery codes not consumed after use
CVE-2026-31868 Parse Server has Stored XSS via file upload of HTML-renderable file types
CVE-2026-32234 Parse Server has a SQL injection via query field name when using PostgreSQL
CVE-2026-32098 Parse Server has a protected fields bypass via LiveQuery subscription WHERE clause
CVE-2026-31901 Parse Server has user enumeration via email verification endpoint

IV. Related Vulnerabilities

Same product: parse-server
Same vendor: parse-community
Same weakness: CWE-284

V. Comments for CVE-2026-31872

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