CVE-2026-9746

Server crashes in case of the use of exchange

State: Published
Severity: 7.1 High
Published: Jun 9, 2026
Updated: Jun 10, 2026
Reserved: May 27, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	mongodb
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	mongodb

Weaknesses

CWE-617 Reachable assertion

Affected Products

Product	Versions
MongoDB ServerMongoDB	8.3.0 to before 8.3.3Affected 8.2.0 to before 8.2.10Affected 8.0.0 to before 8.0.24Affected 7.0.0 to before 7.0.35Affected

References

https://jira.mongodb.org/browse/SERVER-124190

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