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OpenAdvisories
High · 8.1 CVE-2026-18712 EUVD-2026-56885GHSA-jpw7-w4h8-xcfw

Improper Authorization in MongoDB Queryable Encryption Maintenance Operations Allows Unauthorized Modification of Other Collections

Published Aug 11, 2026 · Updated Aug 11, 2026 · Assigned by mongodb

Description

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 products

VendorProductAffectedFixed
MongoDB MongoDB Server 8.3.0 – < 8.3.8, 8.0 – < 8.0.29, 7.0 – < 7.0.40 8.3.8

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS mongodb No fix yet —
Ubuntu Pro 18.04 LTS mongodb No fix yet —
Ubuntu Pro 16.04 LTS mongodb No fix yet —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 14.04 LTS mongodb No fix yet —

Advisories 1

References