CVE-2026-29793Network attack vector

NoSQL injection via untyped Socket.IO service IDs

Published Mar 10, 2026 · Updated Mar 10, 2026

NoSQL injection in @feathersjs/mongodb 5.0.0 through 5.0.41 allows remote attackers to read, modify, or delete records via Socket.IO. The Socket.IO transport accepts object-valued service IDs without type validation, and getObjectId passes embedded MongoDB operators directly into the adapter query. Exposure requires a Socket.IO-accessible Feathers service backed by the MongoDB adapter; an object such as {$ne: null} matches every collection document.

CVSS severity9.3
Critical
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NoSQL injection in @feathersjs/mongodb 5.0.0 through 5.0.41 allows remote attackers to read, modify, or delete records via Socket.IO. The Socket.IO transport accepts object-valued service IDs without type validation, and getObjectId passes embedded MongoDB operators directly into the adapter query. Exposure requires a Socket.IO-accessible Feathers service backed by the MongoDB adapter; an object such as {$ne: null} matches every collection document.

The record

CVE
CVE-2026-29793
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
FeathersJS
Product
@feathersjs/mongodb
Classifications
CWE-943, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 5.0.0, < 5.0.42

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FeathersJS · @feathersjs/mongodbversion=>= 5.0.0, < 5.0.42

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-943Improper Neutralization of Special Elements in Data Query Logic
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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