CVE-2026-104004: MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server…

PriorityP336medium6.5CVSS 3.1

AVNACLPRLUINSUCNINAH

EPSS

0.24%

13.6th percentile

MongoDB Server's collection validation feature may not properly handle certain expressions stored in a validator. In some cases, this can cause the server process to stop running when a document is later inserted. The behavior can occur for authenticated users with write access.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
mongodb	mongodb_server	>= 8.0 < 8.0.34	8.0.34
mongodb	mongodb_server	>= 8.3.0 < 8.3.13	8.3.13
mongodb	mongodb_server	>= 9.0 < 9.0.4	9.0.4

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv4.07.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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