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CVE-2026-66008— Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages

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-community parse-server是parse-community的后端服务框架。 parse-community parse-server 9.0.0版本至9.10.0-alpha.6之前版本和8.2.2版本至8.6.87之前版本存在信息泄露漏洞，该漏洞源于GraphQL验证和输入强制错误消息会泄露Pointer和Relation目标类名，可能导致未经身份验证的攻击者利用公共应用程序ID触发错误，重建隐藏的架构类名。

CVSS 6.3 · Medium EPSS 0.32% · P24

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 4

VendorProduct Version RangeStatus
parse-community parse-server 9.0.0< 9.10.0-alpha.6 affected
9.10.0-alpha.6 unaffected
8.2.2< 8.6.87 affected
8.6.87 unaffected
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I. Basic Information for CVE-2026-66008

Vulnerability Information
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Vulnerability Title
Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages
Source: CVE Program / CVE List V5
Vulnerability Description
Parse Server versions >= 9.0.0 before 9.10.0-alpha.6 and >= 8.2.2 before 8.6.87 disclose Pointer and Relation target class names through GraphQL validation and input-coercion error messages when public schema introspection is disabled (graphQLPublicIntrospection: false, the default). Because these errors are produced before authentication, authorization, or any resolver runs, an unauthenticated client possessing only the public application ID can trigger errors on Pointer or Relation fields to reconstruct hidden schema class names, partially defeating the schema-hiding protection. Only schema metadata (class names) is exposed; no object data, credentials, or user records are disclosed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/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-community parse-server 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
parse-community parse-server是parse-community的后端服务框架。 parse-community parse-server 9.0.0版本至9.10.0-alpha.6之前版本和8.2.2版本至8.6.87之前版本存在信息泄露漏洞，该漏洞源于GraphQL验证和输入强制错误消息会泄露Pointer和Relation目标类名，可能导致未经身份验证的攻击者利用公共应用程序ID触发错误，重建隐藏的架构类名。
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.6 -
parse-community parse-server 8.2.2 ~ 8.6.87 -

II. Public POCs for CVE-2026-66008

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III. Intelligence Information for CVE-2026-66008

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Vendor Advisories for CVE-2026-66008 (2)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-66008

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