CVE-2026-5170

Description

A user with access to the cluster with a limited set of privilege actions can trigger a crash of amongod 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.

Risk Information

Base Score

5.3

MODERATE

Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.039

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2026-5170 are fixed in MongoDB 8.2.2	Windows
Vulnerabilities CVE-2026-5170 are fixed in MongoDB 7.0.31	Windows
Vulnerabilities CVE-2026-5170 are fixed in MongoDB 8.0.18	Windows

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234