Feed/CVE-2026-9740
CVE-2026-9740HIGHCVSS 7.5

CVE-2026-9740

Published Jun 9, 2026·Updated Jul 23, 2026

NVD 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.

CVSS Vector

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

References

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