CVE-2026-29793

Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. From 5.0.0 to before 5.0.42, Socket.IO clients can send arbitrary JavaScript objects as the id argument to any service method (get, patch, update, remove). The transport layer performs no type checking on this argument. When the service uses the MongoDB adapter, these objects pass through getObjectId() and land directly in the MongoDB query as operators. Sending {$ne: null} as the id matches every document in the collection. This vulnerability is fixed in 5.0.42.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/feathersjs/feathers/security/advisories/GHSA-p9xr-7p9p-gpqx	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:feathersjs:feathers:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-03-10 20:16

Updated : 2026-03-19 14:29

NVD link : CVE-2026-29793

Mitre link : CVE-2026-29793

CVE.ORG link : CVE-2026-29793

JSON object : View

Products Affected

feathersjs

feathers

CWE

CWE-943

Improper Neutralization of Special Elements in Data Query Logic

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