PT-2026-48294 · Mongodb · Mongodb Server

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-9748

NVD

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

The $ internalConvertBucketIndexStats stage used PauseExecution as a way to signal "skip this document" when an index stats conversion failed. But PauseExecution is not a general purpose skip mechanism, but rather a TeeBuffer-internal signal used solely by $facet to coordinate its sub-pipelines. When this stage is placed before $facet in a pipeline, TeeBuffer receives the unexpected PauseExecution from upstream and hits a hard invariant assertion, crashing mongod.

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2026-9748

Affected Products

Mongodb Server

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-9748 · Security Note
• https://jira.mongodb.org/browse/SERVER-123951 · Note