🛡️ CVE-2026-29793
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-943 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-943
Public Exploit ✅ No
Source NVD
Published 2026-03-10
Updated 2026-06-02
Modified 2026-03-13
Fix URL N/A

Affected Packages

Software From version Fixed in
@feathersjs/mongodb — —
feathers 5.0.0 5.0.42

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