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OpenAdvisories
High · 7.5 CVE-2026-81517 EUVD-2026-67933GHSA-87fw-525c-9h5m

MongoDB Connector for BI Improper Error Handling of Log Write Failures May Cause Loss of SQL Service

Published Aug 28, 2026 · Updated Aug 31, 2026 · Assigned by mongodb

Description

An unauthenticated party able to reach the port of a MongoDB Connector for BI (mongosqld) instance may generate enough routine connection log activity to exhaust the storage backing the configured log path. When a log write or log rotation operation subsequently fails, the resulting error is not handled and the shared mongosqld process ends, ending service for all connected SQL clients. The process continues to end on startup until an operator restores available storage, and the diagnostic message explaining the condition is not recorded.

Affected products

VendorProductAffectedFixed
MongoDB BI Connector < 2.14.31 2.14.31

Advisories 1

References