CVE-2026-34595— Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value
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I. Basic Information for CVE-2026-34595
Vulnerability Information
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Vulnerability Title
Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value
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 versions 8.6.70 and 9.7.0-alpha.18, an authenticated user with find class-level permission can bypass the protectedFields class-level permission setting on LiveQuery subscriptions. By sending a subscription with a $or, $and, or $nor operator value as a plain object with numeric keys and a length property (an "array-like" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. This issue has been patched in versions 8.6.70 and 9.7.0-alpha.18.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
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 8.6.70之前版本和9.7.0-alpha.18之前版本存在安全漏洞，该漏洞源于具有查找类级别权限的经过身份验证的用户可能绕过LiveQuery订阅中的受保护字段权限设置。
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 | < 8.6.70 | - |
II. Public POCs for CVE-2026-34595
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · parse-community · 2026-03-31 · 9 CVEs total
| CVE-2026-34373 | Parse Server: GraphQL API endpoint ignores CORS origin restriction | |
| CVE-2026-34573 | Parse Server: GraphQL complexity validator exponential fragment traversal DoS | |
| CVE-2026-34224 | Parse Server: MFA single-use token bypass via concurrent authData login requests | |
| CVE-2026-34784 | Parse Server: Streaming file download bypasses afterFind file trigger authorization | |
| CVE-2026-34532 | Parse Server: Cloud function validator bypass via prototype chain traversal | |
| CVE-2026-34215 | Parse Server: Auth data exposed via verify password endpoint | |
| CVE-2026-34574 | Parse Server: Session field immutability bypass via falsy-value guard | |
| CVE-2026-34363 | Parse Server: LiveQuery protected field leak via shared mutable state across concurrent su |
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
V. Comments for CVE-2026-34595
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