Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mongodb | Mongodb | >= 7.0.0, < 7.0.31 |
Related Weaknesses (CWE)
References
- https://jira.mongodb.org/browse/SERVER-101758PatchVendor Advisory
FAQ
What is CVE-2026-5170?
CVE-2026-5170 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ...
How severe is CVE-2026-5170?
CVE-2026-5170 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-5170?
Check the references section above for vendor advisories and patch information. Affected products include: Mongodb Mongodb.