CVE-2026-30966— Parse Server role escalation and CLP bypass via direct `_Join` table write
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I. Basic Information for CVE-2026-30966
Vulnerability Information
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Vulnerability Title
Parse Server role escalation and CLP bypass via direct `_Join` table write
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 9.5.2-alpha.7 and 8.6.20, Parse Server's internal tables, which store Relation field mappings such as role memberships, can be directly accessed via the REST API or GraphQL API by any client using only the application key. No master key is required. An attacker can create, read, update, or delete records in any internal relationship table. Exploiting this allows the attacker to inject themselves into any Parse Role, gaining all permissions associated with that role, including full read, write, and delete access to classes protected by role-based Class-Level Permissions (CLP). Similarly, writing to any such table that backs a Relation field used in a pointerFields CLP bypasses that access control. This vulnerability is fixed in 9.5.2-alpha.7 and 8.6.20.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
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 9.5.2-alpha.7之前版本和8.6.20之前版本存在访问控制错误漏洞，该漏洞源于内部关系表访问控制不当，可能导致权限提升。
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)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| parse-community | parse-server | >= 9.0.0 < 9.5.2-alpha.7 | - |
II. Public POCs for CVE-2026-30966
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|---|
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- Release 8.6.20 · parse-community/parse-server · GitHubx_refsource_MISC
- Release 9.5.2-alpha.7 · parse-community/parse-server · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-30966
Same Patch Batch · parse-community · 2026-03-10 · 14 CVEs total
| CVE-2026-30939 | Parse Server has Denial of Service (DoS) and Cloud Function Dispatch Bypass via Prototype | |
| CVE-2026-30941 | Parse Server has a NoSQL injection via token type in password reset and email verification | |
| CVE-2026-30938 | Parse Server has denylist `requestKeywordDenylist` keyword scan bypass through nested obje | |
| CVE-2026-30948 | Parse Server has stored cross-site scripting (XSS) via SVG file upload | |
| CVE-2026-30949 | Parse Server is missing audience validation in Keycloak authentication adapter | |
| CVE-2026-30946 | Parse Server affected by denial-of-service via unbounded query complexity in REST and Grap | |
| CVE-2026-30947 | Parse Server ha a bypass of class-level permissions in LiveQuery | |
| CVE-2026-31800 | Parse Server: Classes `_GraphQLConfig` and `_Audience` master key bypass via generic class | |
| CVE-2026-30972 | Parse Server has a rate limit bypass via batch request endpoint | |
| CVE-2026-30962 | Parse Server has a protected fields bypass via logical query operators | |
| CVE-2026-30967 | Parse Server OAuth2 authentication adapter account takeover via identity spoofing | |
| CVE-2026-30965 | Parse Server session token exfiltration via `redirectClassNameForKey` query parameter | |
| CVE-2026-31828 | Parse Server has an LDAP injection via unsanitized user input in DN and group filter const |
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-284
- CVE-2026-42205
Avo: Broken Access Control: Unauthorized Execution of Arbitr - CVE-2026-41487
Langfuse: Improper role-based-access control in Langfuse LLM - CVE-2026-42278
UltraDAG: Smart Account Spending Policy Bypass via Pockets - CVE-2026-41646
Nuclei: Local File Read via require() Module Loader Bypass - CVE-2026-8127
eladmin Users API Endpoint UserController.java checkLevel ac
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