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
Possible ATT&CK Techniques 1 AI
T1552.004 · Private KeysAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 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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|---|
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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 |
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V. Comments for CVE-2026-53725
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