CVE-2026-119675: MongoDB Database Tools mongorestore privilege escalation via collection name bypass

CVE-2026-119675 · Severity: high · CVSS 8.6 · Published 2026-11-03

MongoDB Database Tools' mongorestore utility fails to properly validate collection names in untrusted database dumps, allowing an attacker to bypass security filters. By crafting a malicious collection name, an attacker can create unauthorized database user accounts including those with administrative privileges during a restore operation. This requires an operator to restore untrusted data using privileged credentials, potentially leading to complete database compromise.

Technologies: MongoDB Database Tools. Vendors: MongoDB.

Quick answers

Is CVE-2026-119675 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-119675 being exploited in the wild.
How severe is CVE-2026-119675?
High severity, with a CVSS score of 8.6, published 3 November 2026.
Which products and versions are affected?
MongoDB Database Tools 100.4.0 through 100.20.0.
Is there a fix for CVE-2026-119675?
Yes: fixed in 100.20.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-119675 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-119675?
Check whether you run MongoDB Database Tools at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 100.20.1

Technical details

The mongorestore tool inconsistently validates the system.buckets. prefix when processing collection names, allowing specially crafted names to bypass namespace filters and special-collection guards. An unauthenticated attacker can exploit this by providing a malicious dump file; when restored by a privileged operator, unauthorized user accounts with elevated roles (including root) can be created. The vulnerability affects versions 100.4.0 through 100.20.0.

Affected products

  • MongoDB Database Tools 100.4.0 through 100.20.0

Timeline

  • 2026-11-03: disclosed

References

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