CVE-2026-8843: MongoDB

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Creating a "2dsphere_bucket" index on a non-timeseries bucket collection will succeed, but any subsequent attempt to insert a document which triggers updating that index will crash the server. A similar issue occurs when creating "queryable_encrypted_range" indices. This issue affects MongoDB Server v7.0 versions prior to 7.0.32, v8.0 versions prior to 8.0.21 and v8.2 versions prior to 8.2.6

Affected products

• MongoDB MongoDB: from 7.0.0, before 7.0.32 (fixed in 7.0.32); from 8.0.0, before 8.0.21 (fixed in 8.0.21); from 8.2.0, before 8.2.6 (fixed in 8.2.6)

Published 2026-05-18. Last modified 2026-09-24.