CVE-2026-82062 Missing authorization in MongoDB Server

High 7.0 Published Updated

Authenticated users can bypass feature gates to write to arbitrary internal storage tables, enabling unauthorized data modification and privilege escalation.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-82062?

CVE-2026-82062 is a high-severity missing authorization vulnerability in Mongodb Mongodb, published on 8 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A security issue in MongoDB Server allows an authenticated user with elevated internal privileges to bypass a disabled feature gate in the applyOps command by specifying an internal replication mode value that was not intended to be client-selectable. This bypass enables execution of container operations that are disabled by default in production configurations, allowing direct storage-engine writes to arbitrary internal storage tables. The authorization check for these operations validates only the operation's namespace, not the actual storage target, enabling writes to unrelated internal metadata or other collections' data.

Weakness: CWE-863

Which versions are affected by CVE-2026-82062?

1 open source package ship an affected version, including mongodb. It affects 1 product.

PackageAffectedFixed in
mongodb BitnamiFrom 8.3.08.3.9

Products include Mongodb Mongodb.

How do I fix CVE-2026-82062?

Upgrade mongodb to 8.3.9 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-82062 being exploited?

There is no known exploitation of CVE-2026-82062 in the wild and no public exploit code.

All Mongodb Mongodb vulnerabilities

Sources

Also known as BIT-mongodb-2026-82062, GHSA-89pf-pvm7-xj92, MINI-w5fm-crfx-fgv2, UBUNTU-CVE-2026-82062.

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