CVE-2026-5170

State: PUBLISHED · Published: 2026-03-30 · Updated: 2026-03-30 · Assigner: mongodb

Description

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.

CWE

CWE-617 — CWE-617: Reachable Assertion

Affected

MongoDB / MongoDB Server — v=8.2 <8.2.2 [affected]; v=8.0 <8.0.18 [affected]; v=7.0 <7.0.31 [affected]

CVSS

4.0 score=6 severity=MEDIUM CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
3.1 score=5.3 severity=MEDIUM CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References

https://jira.mongodb.org/browse/SERVER-101758 vendor-advisory

Source

cvelistV5-main/cves/2026/5xxx/CVE-2026-5170.json