CVE-2026-87109: MongoDB Ops Manager information disclosure in user-listing endpoints

CVE-2026-87109 · Severity: medium · CVSS 5.3 · Published 2026-10-09

MongoDB Ops Manager is a centralized platform for managing MongoDB database deployments across organizations. An authenticated member of an organization can view unconfirmed two-factor authentication enrollment seeds of other members through the user listing API, allowing them to intercept and register authenticators intended for colleagues and potentially gain unauthorized access to accounts.

Technologies: MongoDB Ops Manager. Vendors: MongoDB.

Quick answers

Is CVE-2026-87109 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-87109 being exploited in the wild.
How severe is CVE-2026-87109?
Medium severity, with a CVSS score of 5.3, published 9 October 2026.
Which products and versions are affected?
MongoDB Ops Manager.
Is there a fix for CVE-2026-87109?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-87109 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-87109?
Check whether you run MongoDB Ops Manager. 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.

Technical details

The vulnerability exists in Ops Manager's user-listing endpoints which fail to redact pending authenticator enrollment seeds when a member's multi-factor authentication enrollment is incomplete. An authenticated attacker with valid organization membership can enumerate other members and retrieve their secret enrollment material, which can then be used to enroll their own authenticator on a victim's account. The vulnerability requires prior authentication and knowledge of organization/project membership.

Affected products

  • MongoDB Ops Manager

Timeline

  • 2026-10-09: disclosed

References

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