CVE-2026-31901— Parse Server has user enumeration via email verification endpoint
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I. Basic Information for CVE-2026-31901
Vulnerability Information
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Vulnerability Title
Parse Server has user enumeration via email verification endpoint
Source: NVD (National Vulnerability Database)
Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.34 and 9.6.0-alpha.8, the email verification endpoint (/verificationEmailRequest) returns distinct error responses depending on whether an email address belongs to an existing user, is already verified, or does not exist. An attacker can send requests with different email addresses and observe the error codes to determine which email addresses are registered in the application. This is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (verifyUserEmails: true). This vulnerability is fixed in 8.6.34 and 9.6.0-alpha.8.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
响应差异性信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Parse Server 安全漏洞
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 8.6.34之前版本和9.6.0-alpha.8之前版本存在安全漏洞，该漏洞源于电子邮件验证端点返回不同的错误响应，可能导致用户枚举。
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.8 | - |
II. Public POCs for CVE-2026-31901
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|---|
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- Release 8.6.34 · parse-community/parse-server · GitHubx_refsource_MISC
- Release 9.6.0-alpha.8 · parse-community/parse-server · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-31901
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-2026-31872 | Parse Server has a protected fields bypass via dot-notation in query and sort | |
| 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 |
IV. Related Vulnerabilities
Same product: parse-server
- CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` ` - CVE-2026-39321
Parse Server has a login timing side-channel reveals user ex - CVE-2026-35200
Parse Server has a file upload Content-Type override via ext - CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind fil - CVE-2026-34215
Parse Server: Auth data exposed via verify password endpoint
Same vendor: parse-community
- CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` ` - CVE-2026-39321
Parse Server has a login timing side-channel reveals user ex - CVE-2026-35200
Parse Server has a file upload Content-Type override via ext - CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind fil - CVE-2026-34215
Parse Server: Auth data exposed via verify password endpoint
Same weakness: CWE-204
- CVE-2026-8242
Industrial Application Software IAS Canias ERP Login RMI doA - CVE-2026-20195
Cisco Identity Services Engine Observable Response Discrepan - CVE-2026-24468
OpenAEV Vulnerable to Username/Email Enumeration Through Dif - CVE-2026-34264
Information Disclosure vulnerability in SAP Human Capital Ma - CVE-2026-4113
SonicWALL SMA1000 安全漏洞
V. Comments for CVE-2026-31901
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