What is CVE-2026-29793?

CVE-2026-29793 is a critical-severity vulnerability in @Feathersjs Mongodb, classified under Improper Neutralization of Special Elements in Data Query Logic. CVSS score: 9.8/10. Published 2026-03-10.

How severe is CVE-2026-29793?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in @Feathersjs Mongodb

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…

EPSS: 0.005 (37.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

@Feathersjs Mongodb — versions >= 5.0.0, < 5.0.42
Feathersjs Feathers

Weakness classification (CWE)

CWE-943 — Improper Neutralization of Special Elements in Data Query Logic

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-29793?: CVE-2026-29793 is a critical-severity vulnerability in @Feathersjs Mongodb, classified under Improper Neutralization of Special Elements in Data Query Logic. CVSS score: 9.8/10. Published 2026-03-10.
How severe is CVE-2026-29793?: Critical severity. CVSS v3 base score is 9.8 out of 10.