CVE-2025-13644: MongoDB

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

MongoDB Server may experience an invariant failure during batched delete operations when handling documents. The issue arises when the server mistakenly assumes the presence of multiple documents in a batch based solely on document size exceeding BSONObjMaxSize. This issue affects MongoDB Server v7.0 versions prior to 7.0.26, MongoDB Server v8.0 versions prior to 8.0.13, and MongoDB Server v8.1 versions prior to 8.1.2

Affected products

• MongoDB MongoDB: from 7.0.0, before 7.0.26 (fixed in 7.0.26); from 8.0.0, before 8.0.13 (fixed in 8.0.13); from 8.1.0, before 8.1.2 (fixed in 8.1.2); version 8.2.0 only

Published 2025-11-25. Last modified 2026-06-17.