CVE-2026-30947
HIGH EPSS 34.1%
Published Mar 10, 20263mo ago · Modified Mar 11, 20263mo ago
8.7 CVSS 4.0
Published Mar 10, 2026 3mo ago
Last Modified Mar 11, 2026 3mo ago
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.3 and 8.6.16, class-level permissions (CLP) are not enforced for LiveQuery subscriptions. An unauthenticated or unauthorized client can subscribe to any LiveQuery-enabled class and receive real-time events for all objects, regardless of CLP restrictions. All Parse Server deployments that use LiveQuery with class-level permissions are affected. Data intended to be restricted by CLP is leaked to unauthorized subscribers in real time. This vulnerability is fixed in 9.5.2-alpha.3 and 8.6.16.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
34.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-863 Incorrect Authorization Authorization
Affected Products 4
| Vendor | Product | Version | Range |
|---|---|---|---|
| parseplatform | parse-server | * | <8.6.16 |
| parseplatform | parse-server | * | ≥9.0.0 – <9.5.2 |
| parseplatform | parse-server | 9.5.2 | any |
| parseplatform | parse-server | 9.5.2 | any |
References 3
- github.com https://github.com/parse-community/parse-server/releases/tag/8.6.16
- github.com https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.3
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-7ch5-98q2-7289
Remediation
- github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-7ch5-98q2-7289