CVE-2026-8431 Ops Manager RCE via webhook body
Administrative users can execute arbitrary commands via FreeMarker template injection in webhook configurations.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8431?
CVE-2026-8431 is a critical code injection vulnerability in MongoDB, Inc. Ops Manager, published on 12 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An administrative user with access to configure webhooks can execute arbitrary commands by configuring and then triggering webhooks containing specific FreeMarker template syntax.
This issue affects all MongoDB Ops Manager 7.0 versions and MongoDB Ops Manager versions 8.0.22 and prior.
Weakness: CWE-77
Which versions are affected by CVE-2026-8431?
It affects 1 product.
Products include Mongodb Ops Manager.
How do I fix CVE-2026-8431?
No fix has been published for CVE-2026-8431 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-8431 being exploited?
There is no known exploitation of CVE-2026-8431 in the wild and no public exploit code.
Other vulnerabilities in MongoDB, Inc. Ops Manager
- CVE-2020-7927 Potential privilege escalation in Ops Manager API
- CVE-2026-87110 Ops Manager Uncontrolled Resource Consumption in Monitoring Endpoints
- CVE-2021-20335 SSL may be unexpectedly disabled during upgrade of multiple-server MongoDB Ops Manager
- CVE-2026-87109 Ops Manager Sensitive MFA Enrollment Information Exposure in User Listings
- CVE-2019-2388 Potential exposure of log information in Ops Manager
Sources
Also known as GHSA-6m5j-p732-cfhq.