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CVE-2026-64627— Parse Server 9.0.0 Schema Disclosure via GraphQL Variable Coercion

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 Platform Parse Server是Parse Platform组织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 Platform Parse Server 9.0.0版本至9.10.0-alpha.4之前版本和8.6.85之前版本存在信息泄露漏洞，该漏洞源于GraphQL API在禁用公共内省时，变量强制转换期间仍返回模式派生的建议消息，可能导致未经身份验证的攻击者通过提交包含近似枚举值或输入对象字段名的查询或变更，迭代恢复隐藏的模式标识符。

CVSS 6.9 · Medium EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 4

VendorProduct Version RangeStatus
parse-community parse-server 9.0.0< 9.10.0-alpha.4 affected
9.10.0-alpha.4 unaffected
< 8.6.85 affected
8.6.85 unaffected
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I. Basic Information for CVE-2026-64627

Vulnerability Information
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Vulnerability Title
Parse Server 9.0.0 Schema Disclosure via GraphQL Variable Coercion
Source: CVE Program / CVE List V5
Vulnerability Description
Parse Server versions >= 9.0.0 before 9.10.0-alpha.4 and versions before 8.6.85 contain a schema disclosure vulnerability. When the GraphQL API is mounted with public introspection disabled (graphQLPublicIntrospection: false, the default), schema-derived 'Did you mean ...?' suggestions were still returned in GraphQL error messages produced during variable coercion, which were not covered by the introspection-hardening control (that only handled validation errors). An unauthenticated caller possessing only the public application id can iteratively recover hidden schema identifiers — including registered Cloud Code function names and Parse class and field names — by submitting queries or mutations whose variables contain near-miss enum values or input-object field names. This is a follow-up bypass of GHSA-8cph-rgr4-g5vj. The issue is fixed in 9.10.0-alpha.4 and 8.6.85.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Parse Platform Parse Server 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Platform Parse Server是Parse Platform组织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 Platform Parse Server 9.0.0版本至9.10.0-alpha.4之前版本和8.6.85之前版本存在信息泄露漏洞，该漏洞源于GraphQL API在禁用公共内省时，变量强制转换期间仍返回模式派生的建议消息，可能导致未经身份验证的攻击者通过提交包含近似枚举值或输入对象字段名的查询或变更，迭代恢复隐藏的模式标识符。
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 ~ 9.10.0-alpha.4 -
parse-community parse-server 0 ~ 8.6.85 -

II. Public POCs for CVE-2026-64627

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III. Intelligence Information for CVE-2026-64627

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Vendor Advisories for CVE-2026-64627 (2)

IV. Related Vulnerabilities

Same product: parse-server
Same vendor: parse-community
Same weakness: CWE-209

V. Comments for CVE-2026-64627

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