CVE-2026-18701 Type Confusion in MongoDB Query Subsystem Leads to Denial of Service

An issue in MongoDB Server's query subsystem could allow an authenticated user with read privileges to cause the server process to terminate unexpectedly by submitting a specially formed query filter. This could result in a denial of service...

CVE-2026-18701

MongoDB Server’s query subsystem is affected. An authenticated user with read privileges can submit a specially formed query filter to cause the server process to terminate, resulting in a denial of service. The connected documents confirm the issue but do not specify affected versions or a remed...

Type Confusion in MongoDB Query Subsystem Leads to Denial of Service

An issue in MongoDB Server's query subsystem could allow an authenticated user with read privileges to cause the server process to terminate unexpectedly by submitting a specially formed query filter. This could result in a denial of service...

CVE-2026-18697

An issue in MongoDB Server's aggregation framework could allow an unauthenticated party to cause a mongos router process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service, disrupting client connections routed through the...

Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos

An issue in MongoDB Server's aggregation framework could allow an unauthenticated party to cause a mongos router process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service, disrupting client connections routed through the...

CVE-2026-18697

The CVE-2026-18697 entry describes an issue in MongoDB Server’s aggregation framework that can be exploited by an unauthenticated party to cause a mongos router process to terminate, resulting in a denial of service affecting client connections routed through the affected mongos instance. Reporte...

CVE-2026-18697 Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos

An issue in MongoDB Server's aggregation framework could allow an unauthenticated party to cause a mongos router process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service, disrupting client connections routed through the...

EUVD-2026-56910

An issue in MongoDB Server's aggregation framework could allow an unauthenticated party to cause a mongos router process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service, disrupting client connections routed through the...

EUVD-2026-56909

An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server...

Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure

An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server...

CVE-2026-18693 Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure

An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server...

CVE-2026-18693

An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server...

CVE-2026-18693

CVE-2026-18693 involves MongoDB Server handling of timeseries collections. The issue arises when an authenticated user with write privileges inserts certain documents, which can cause an internal data structure to become inconsistent. A subsequent insert into the affected bucket may trigger memor...

EUVD-2026-56908

An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain user-supplied fields when constructin...

Improper Authorization in MongoDB Atlas Vector Search Allows Unauthorized Access to Protected View Data

An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain user-supplied fields when constructin...

CVE-2026-18705 Improper Authorization in MongoDB Atlas Vector Search Allows Unauthorized Access to Protected View Data

An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain user-supplied fields when constructin...

CVE-2026-18705

An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain user-supplied fields when constructin...

CVE-2026-18705

Summary: CVE-2026-18705 affects MongoDB Server’s Atlas Vector Search feature. An authenticated user with read access to one view can retrieve documents from a different, protected view on the same underlying collection. Root cause (as stated): Insufficient handling of certain user-supplied fields...

CVE-2026-18704

An issue in MongoDB Server's aggregation framework could allow an authenticated user with only read privileges to perform write operations against collections they should not be able to modify. This is due to an internal-use aggregation stage being reachable by external clients without an...

CVE-2026-18704

Summary: CVE-2026-18704 affects MongoDB Server's aggregation framework. Affected component is an internal-use aggregation stage that is reachable by external clients without proper authorization checks on its embedded operations. This could allow an authenticated user with only read privileges to...