CVE-2026-57480
Published:July 08, 2026
Updated:August 04, 2026
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.12 and 8.6.82, deeply nested $or, $and, and $nor query condition operators in the REST API or LiveQuery query handling could trigger exponential-time processing in the internal query-traversal helper and block the Node.js event loop. This issue is fixed in versions 9.9.1-alpha.12 and 8.6.82.
Affected Packages
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=2.0.0 <8.6.82Fix Suggestion:
Update to version 8.6.82https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=9.0.0 <9.9.1-alpha.12Fix Suggestion:
Update to version 9.9.1-alpha.12parse-server (NPM):
Affected version(s) >=9.0.0 <9.9.1-alpha.12Fix Suggestion:
Update to version 9.9.1-alpha.12parse-server (NPM):
Affected version(s) >=1.0.0 <8.6.82Fix Suggestion:
Update to version 8.6.82Related Resources (10)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Inefficient Algorithmic Complexity
EPSS
Base Score:
0.34