Update -
We have sent direct email notifications to organizations with detected TLS 1.0/1.1 usage; if you did not receive a notification, no action is required at this time.
Nov 19, 2025 - 16:39 UTC
Scheduled -
As we previously communicated early this year, MongoDB is enhancing our security posture by discontinuing support for older, less secure versions of Transport Layer Security (TLS) within Atlas. This decision aligns with industry best practices.
We have begun disallowing new use of TLS 1.0 and TLS 1.1 in Atlas and these versions of TLS will be completely removed from MongoDB Atlas on or shortly after 1 December, 2025.
This may have the following impact on our customers who do have TLS 1.0/1.1 usage:
API Usage: If you utilize the MongoDB API (e.g., via Terraform or similar automation tools) to programmatically create or manage clusters, API calls attempting to provision or configure a cluster with TLS 1.0 or TLS 1.1 will fail after 1 December 2025. This applies to both new cluster creations and modifications to existing clusters.
- Public API: For the endpoints POST /api/atlas/v2/groups/{groupId}/clusters and PATCH /api/atlas/v2/groups/{groupId}/clusters/{clusterName}, advancedConfiguration.minimumEnabledTlsProtocol should specify “TLS1_2” (and NOT “TLS1_0” or “TLS1_1”)
- Terraform: For mongodbatlas_cluster and mongodbatlas_advanced_cluster resource, advanced_configuration.minimum_enabled_tls_protocol must be “TLS1_2”; older standards “TLS1_0” and “TLS1_1” will fail to update the cluster or deploy.
Application Connectivity: Any applications, services, or tools that connect to your MongoDB Atlas clusters and are still relying on TLS 1.0 or TLS 1.1 will experience connection failures after 1 December 2025.
Recommended Actions:
Our systems are unable to distinguish between connections originating from production applications, non-production applications, or other traffic such as security scanners that customers may employ. Consequently, we cannot offer specific recommendations based on the source of residual TLS 1.0 and 1.1 connections. We encourage customers to consult our documentation (https://www.mongodb.com/docs/atlas/cli/current/command/atlas-clusters-advancedSettings-update/) for guidance on configuring TLS 1.2 and to reach out to our support team if you require assistance with this transition.
At MongoDB, we want you to have full confidence in the security and resiliency of our systems and products, which are designed to enable your company’s secure growth and innovation. If you have any questions or need assistance, please use the chat (https://www.mongodb.com/company/contact) in the Atlas UI or contact Support (https://support.mongodb.com/welcome) to talk to someone on our team.
Oct 31, 2025 - 22:05 UTC