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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-18711

Use-After-Free in MongoDB Query Execution Engine Leads to Denial of Service and Potential Memory Disclosure

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Status
Published
Published
Updated
Assigning organization
mongodb

Description

An issue in MongoDB Server's query execution engine could allow an authenticated user with read and write privileges to cause an internal reference to be used after the underlying memory has been freed, when running certain queries against time-series collections. This could result in a server crash or disclosure of freed memory contents within query results.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

MongoDB MongoDB Server

Default version status: unaffected

  • 8.3.0 to < 8.3.8affected
  • 8.0 to < 8.0.29affected

References