Feathersjs up to 5.0.41 getObjectId data query logic injection

Summaryinfo

A vulnerability identified as critical has been detected in Feathersjs up to 5.0.41. This affects the function getObjectId. This manipulation causes data query logic injection. The identification of this vulnerability is CVE-2026-29793. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Feathersjs up to 5.0.41 and classified as critical. Affected by this vulnerability is the function getObjectId. The manipulation with an unknown input leads to a data query logic injection vulnerability. The CWE definition for the vulnerability is CWE-943. The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-29793 since 03/04/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

Upgrading to version 5.0.42 eliminates this vulnerability.

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Productinfo

Name

• Feathersjs

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9
• 5.0.10
• 5.0.11
• 5.0.12
• 5.0.13
• 5.0.14
• 5.0.15
• 5.0.16
• 5.0.17
• 5.0.18
• 5.0.19
• 5.0.20
• 5.0.21
• 5.0.22
• 5.0.23
• 5.0.24
• 5.0.25
• 5.0.26
• 5.0.27
• 5.0.28
• 5.0.29
• 5.0.30
• 5.0.31
• 5.0.32
• 5.0.33
• 5.0.34
• 5.0.35
• 5.0.36
• 5.0.37
• 5.0.38
• 5.0.39
• 5.0.40
• 5.0.41

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