PT-2026-29047 · Mongodb · Mongodb Server

Published 2026-03-30 · Updated 2026-03-30 · CVE-2026-5170

Mitre

CVSS v3.1

5.3

Medium

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

A user with access to the cluster with a limited set of privilege actions can trigger a crash of a mongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may cause a denial of service by taking down the primary of the replica set.

This issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31.

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2026-5170

Affected Products

Mongodb Server

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-5170 · Security Note
• https://jira.mongodb.org/browse/SERVER-101758 · Vendor Advisory