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CVE-2026-9740

MongoDB

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 7.5EPSS 0.345%Risk 0.77
View source
Published
2026-06-09 23:17:03
Affected versions
unknown
Type
Critical software
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H