CVE-2026-18712: Improper Authorization in MongoDB Queryable Encryption Maintenance Operations Allows Unauthorized Modification of Other Collections
An issue in MongoDB Server's Queryable Encryption maintenance operations could allow an authenticated user with privileges on one encrypted collection to cause unauthorized modification or destruction of data belonging to a different collection. This is due to insufficient validation of certain internal metadata references before they are used to perform operations on other namespaces.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-18712?
The severity of CVE-2026-18712 is categorized as high with a score of 8.1.
How do I fix CVE-2026-18712?
To fix CVE-2026-18712, ensure you apply the latest patches provided by MongoDB for your server version.
What type of vulnerability is CVE-2026-18712?
CVE-2026-18712 is an improper authorization vulnerability affecting MongoDB's Queryable Encryption maintenance operations.
Who is affected by CVE-2026-18712?
Auth-endowed users with privileges on one encrypted collection in MongoDB are affected by CVE-2026-18712.
What can attackers do with CVE-2026-18712?
Attackers can exploit CVE-2026-18712 to authorize unauthorized modifications or destruction of data in different collections.