CVE-2026-30966

CRITICAL EPSS 30.2%
Published Mar 10, 20263mo ago · Modified Mar 11, 20263mo ago
10.0 CVSS 3.1
Critical
Find Similar
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.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.

CVSS Details

Base Score
10.0
Exploitability
3.9
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability Low

Threat Intelligence

EPSS Exploit Probability
30.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-284

Affected Products 8

VendorProductVersionRange
parseplatformparse-server* <8.6.20
parseplatformparse-server*≥9.0.0  –  <9.5.2
parseplatformparse-server9.5.2any
parseplatformparse-server9.5.2any
parseplatformparse-server9.5.2any
parseplatformparse-server9.5.2any
parseplatformparse-server9.5.2any
parseplatformparse-server9.5.2any

References 3

  • github.com https://github.com/parse-community/parse-server/releases/tag/8.6.20
    ProductRelease Notes
  • github.com https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.7
    ProductRelease Notes
  • github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-5f92-jrq3-28rc
    PatchVendor Advisory

Remediation

  • github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-5f92-jrq3-28rc
    PatchVendor Advisory