CVE-2026-9746: MongoDB

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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 products

• MongoDB MongoDB: from 7.0.0, before 7.0.35 (fixed in 7.0.35); from 8.0.0, before 8.0.24 (fixed in 8.0.24); from 8.2.0, before 8.2.10 (fixed in 8.2.10); from 8.3.0, before 8.3.3 (fixed in 8.3.3)

Published 2026-06-09. Last modified 2026-07-23.