What’s Vulnerable › Vulnerabilities

CVE-2026-13068: MongoDB mongos Improper Authorization Check in Cursor Termination Allowing Cross-Database Privilege Misuse

Description

An authenticated user holding cursor termination privileges on one database may incorrectly be permitted to terminate active cursors on a separate database, disrupting ongoing query operations for other users. The behavior stems from an authorization check that does not correctly scope privileges to the appropriate namespace.

Affected products

How to fix

Upgrade to a fixed version: MongoDB 7.0.39, 8.0.28, 8.2.12, 8.3.7. Check the vendor advisory for mitigations.

References

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