Ghostwire

CVE-2026-9740: A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by...

HIGH CVSS 7.5

Published: June 9, 2026 | Last Modified: June 9, 2026

Description

A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (2 articles)

References