CVE-2026-13062: MongoDB

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An authenticated user with write privileges on a Queryable Encryption-enabled collection may be able to modify internal encryption metadata fields that are intended to be server-controlled, by sending crafted write commands through the mongos router on a sharded cluster. This can result in corruption of encrypted query correctness.

Affected products

• MongoDB MongoDB: from 7.0.0, before 7.0.39 (fixed in 7.0.39); 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.