CVE-2025-6709: MongoDB

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

The MongoDB Server is susceptible to a denial of service vulnerability due to improper handling of specific date values in JSON input when using OIDC authentication. This can be reproduced using the mongo shell to send a malicious JSON payload leading to an invariant failure and server crash. This issue affects MongoDB Server v7.0 versions prior to 7.0.17 and MongoDB Server v8.0 versions prior to 8.0.5. The same issue affects MongoDB Server v6.0 versions prior to 6.0.21, but an attacker can only induce denial of service after authenticating.

Affected products

• MongoDB MongoDB: from 6.0.0, before 6.0.21 (fixed in 6.0.21); from 7.0.0, before 7.0.17 (fixed in 7.0.17); from 8.0.0, before 8.0.5 (fixed in 8.0.5)

Published 2025-06-26. Last modified 2026-06-17.