CVE-2026-34373— Parse Server: GraphQL API endpoint ignores CORS origin restriction
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I. Basic Information for CVE-2026-34373
Vulnerability Information
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Vulnerability Title
Parse Server: GraphQL API endpoint ignores CORS origin restriction
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 8.6.66 and 9.7.0-alpha.10, the GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This bypasses origin restrictions that operators configure to control which websites can interact with the Parse Server API. The REST API correctly enforces the configured allowOrigin restriction. This issue has been patched in versions 8.6.66 and 9.7.0-alpha.10.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
源验证错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
Parse Server 访问控制错误漏洞
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 8.6.66之前版本和9.7.0-alpha.10之前版本存在访问控制错误漏洞，该漏洞源于GraphQL API端点未正确实施跨域限制，可能导致绕过配置的源限制。
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 | < 8.6.66 | - |
II. Public POCs for CVE-2026-34373
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|---|
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Same Patch Batch · parse-community · 2026-03-31 · 9 CVEs total
| 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-2026-34595 | Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value | |
| 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
Same weakness: CWE-346
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AgentFlow Local Web API Content-Type Validation Bypass - CVE-2026-41398
OpenClaw - Unauthorized Agent Request Dispatch via Untrusted - CVE-2026-41393
OpenClaw < 2026.3.31 - Arbitrary DNS Authority Acceptance an
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