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CVE-2026-53725— Parse Server: Endpoints `/login` and `/verifyPassword` disclose MFA secrets and protected fields when `_User` get is denied

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 9.8.0版本至9.9.1-alpha.5之前版本存在信息泄露漏洞，该漏洞源于当启用MFA且通过类级权限拒绝_User类的get操作时，/login和/verifyPassword端点在重新获取用户时，若get权限被拒绝，服务器会回退到原始数据库行，暴露原始authData（包括MFA TO

AI Predicted 8.6 Difficulty: Easy EPSS 0.25% · P17

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 1

VendorProduct Version RangeStatus
parse-community parse-server >= 9.8.0, < 9.9.1-alpha.5 affected
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I. Basic Information for CVE-2026-53725

Vulnerability Information
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Vulnerability Title
Parse Server: Endpoints `/login` and `/verifyPassword` disclose MFA secrets and protected fields when `_User` get is denied
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. From version 9.8.0 to before version 9.9.1-alpha.5, apps that enable MFA and deny get on the _User class via Class-Level Permissions could expose sensitive user data through the /login and /verifyPassword endpoints. These endpoints re-fetch the user through the access-controlled query pipeline (CLP, protectedFields, auth-adapter sanitizers) before responding. When that re-fetch was denied by the _User get permission, the server fell back to the raw database row, exposing raw authData (including MFA TOTP secrets and recovery codes) and fields hidden by protectedFields (when protectedFieldsOwnerExempt is false). /verifyPassword is the most severe: with only a username and password (no session or MFA token), an attacker who knows a victim's password could retrieve their MFA secret and recovery codes, defeating the second factor. This issue has been patched in version 9.9.1-alpha.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
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 9.8.0版本至9.9.1-alpha.5之前版本存在信息泄露漏洞，该漏洞源于当启用MFA且通过类级权限拒绝_User类的get操作时，/login和/verifyPassword端点在重新获取用户时，若get权限被拒绝，服务器会回退到原始数据库行，暴露原始authData（包括MFA TO
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 >= 9.8.0, < 9.9.1-alpha.5 -

II. Public POCs for CVE-2026-53725

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III. Intelligence Information for CVE-2026-53725

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Patches & Fixes for CVE-2026-53725 (1)

Vendor Advisories for CVE-2026-53725 (1)

Same Patch Batch · parse-community · 2026-06-12 · 6 CVEs total

CVE-2026-53726 Parse Server: Relation `$relatedTo` query bypasses `protectedFields` and owning-object ACL
CVE-2026-53724 Parse Server: Stored XSS via trailing-dot filename bypassing file upload extension blockli
CVE-2026-47248 Parse Server: GraphQL "Did you mean" validation suggestions disclose schema to unauthentic
CVE-2026-47138 Parse Server: Pre-authentication denial of service via client version header regex backtra
CVE-2026-50008 Parse Server: Server option routeAllowList is bypassable through batch sub-requests

IV. Related Vulnerabilities

Same product: parse-server
Same vendor: parse-community
Same weakness: CWE-200

V. Comments for CVE-2026-53725

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