CVE-2026-9746: When using $changestreams and $_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are…

PriorityP336medium6.5CVSS 3.1

AVNACLPRLUINSUCNINAH

EPSS

0.27%

18.5th percentile

When using $changestreams and $_requestReshardingResumeToken with the exchange option the server hits an invariant which causes the server to crash. There are no special privileges needed. The user must be logged in to issue the statement.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
mongodb	mongodb_server	>= 7.0.0 < 7.0.35	7.0.35
mongodb	mongodb_server	>= 8.0.0 < 8.0.24	8.0.24
mongodb	mongodb_server	>= 8.2.0 < 8.2.10	8.2.10
mongodb	mongodb_server	>= 8.3.0 < 8.3.3	8.3.3

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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