Is CVE-2026-29793 in the CISA KEV catalog?

No. CVE-2026-29793 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-29793?

CVE-2026-29793 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2026-29793?

CVE-2026-29793 has an EPSS score of 0.46% (37th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-29793?

Upgrade feathers to 5.0.42 or later.

CVE & CISA-KEV Catalog

CVE-2026-29793

CRITICAL

9.8

CVSS v3

NVD

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.

CWE-943

How to fix

Remediation Available

feathersNVD

Affected:>= 5.0.0, < 5.0.42Fixed in:5.0.42CVE-2026-29793derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.46%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Vendor Advisory1

github.com

Related Vulnerabilities

Other CWE-943 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12904	High	8.8	6.4%	-	Fix
CVE-2020-36195	Critical	9.8	1.8%	-	Fix
CVE-2018-7829	High	8.8	1.7%	-	Fix
CVE-2021-1349	Medium	6.5	1.4%	-	Fix
CVE-2018-19952	High	7.5	1.3%	-	Fix
CVE-2022-36084	Critical	9.9	1.2%	-	Fix

Embed a live status badge for CVE-2026-29793

Markdown

[![CVE-2026-29793](https://tridentstack.com/cve/badge/CVE-2026-29793.svg)](https://tridentstack.com/cve/CVE-2026-29793)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-29793"><img src="https://tridentstack.com/cve/badge/CVE-2026-29793.svg" alt="CVE-2026-29793"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-19.