CVE-2026-13058: MongoDB

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

An authenticated user with basic write privileges can cause the mongod process to terminate abnormally by sending a crafted transaction command with an incomplete set of required fields. The issue stems from inconsistent validation across related transaction command parameters, resulting in a fatal internal invariant failure and denial of service.

Affected products

• MongoDB MongoDB: from 8.0.0, before 8.0.28 (fixed in 8.0.28); from 8.2.0, before 8.2.12 (fixed in 8.2.12); from 8.3.0, before 8.3.7 (fixed in 8.3.7)

Published 2026-07-22. Last modified 2026-08-05.