CVE WatchNov 10, 2026

CVE-2026-120816

A user with basic read-tier database privileges can use an option on a server-side data-change notification feature to receive the contents

CVSS

4.3

Medium

EPSS

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KEV

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Exploit Today

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0-100

Published: Nov 10, 2026 · Last modified: Nov 10, 2026 · CWE-863

EPSS · 30d

Not enough EPSS history yet.

Technical description

A user with basic read-tier database privileges can use an option on a server-side data-change notification feature to receive the contents of certain restricted internal collections that the same user is refused on a direct read. The privilege check for the notification feature is derived only from the target namespace and does not account for the option, so no additional permission is required. This may result in unintended access to data stored in those internal collections.

Official references

jira.mongodb.orghttps://jira.mongodb.org/browse/SERVER-135203

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